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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 2-Hydroxy-1,4-Naphoquinone

Cas:83-72-7

Min.Order:1

Negotiable

Type:Other

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory price Cosmetic LAWSONE 83-72-7 Manufacturer

Cas:83-72-7

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Lawsone

Cas:83-72-7

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

2-Hydroxy-1,4-naphoquinone Basic information Product Name: 2-Hydroxy-1,4-naphoquinone Synonyms: 1,4-Naphthalenedione,2-hydroxy-;1,4-Naphthoquinone, 2-hydroxy-;2-Hydroxy-1,4-naphthalenedi

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

2-Hydroxy-1,4-naphoquinone 83-72-7

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $15.0 / 50.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Factory direct supply CAS 83-72-7 with best quality

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Chemical name: 2-Hydroxy-1,4-naphoquinone English name: 2-Hydroxy-1,4-naphoquinone CAS No: 83-72-7 Molecular formula: C10H6O3 Structural f

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

1,4-Naphthalenedione,2-hydroxy- 83-72-7

Cas:83-72-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

About Product Details Items Specifications Test Results Appearance White to white crystalline powde

China Biggest Factory Manufacturer Supply 2-Hydroxy-1,4-naphoquinone CAS 83-72-7

Cas:83-72-7

Min.Order:100 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

2-Hydroxy-1,4-naphoquinone Polycyclic compounds

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $90.0 / 120.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

2-Hydroxy-1,4-naphoquinone CAS:83-72-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic i

2-Hydroxy-1,4-naphoquinone CAS:83-72-7

Cas:83-72-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1,4-Naphthalenedione,2-hydroxy-

Cas:83-72-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:83-72-7

Cas:83-72-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $10.0 / 100.0

Type:Lab/Research institutions

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Factory Supply High Quality CAS 83-72-7 ,2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:0

Negotiable

Type:Manufacturers

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Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Hangzhou Lingrui Chemical Co.,Ltd.

our strengths: 1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment items accepted (Btc; MoneyGram; WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery

High purity 2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Gram

Negotiable

Type:Other

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Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

1,4-Naphthalenedione,2-hydroxy-

Cas:83-72-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

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HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:Yellow crystal powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:antifungal

1,4-Naphthalenedione,2-hydroxy-

Cas:83-72-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Siwei Development Group Ltd.

Product name: 2-Hydroxy-1,4-Naphoquinone CAS No.:83-72-7 Molecule Formula:C10H6O3 Molecule Weight:174.15 Purity: 99% Package: 25kg/drum Description:Yellow crystalline powder Manufacture Standards:Enterprise Standard TESTING ITEMS

High Quality 2-Hydroxy-1,4-Naphoquinone in stock

Cas:83-72-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best Price2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

2-Hydroxynaphthalene-1,4-dione

Cas:83-72-7

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: 2-Hydroxy-1,4-naphoquinone CAS: 83-72-7 MF: C10H6O3 MW: 174.15 EINECS: 201-496-3 Mol File: 83-72-7.mol 2-Hydroxy-1,4-naphoquinone Structure 2-Hydroxy-1,4-naphoquinone Chemical Properties Melting point 192-195 &de

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

2-Hydroxy-1,4-naphoquinone

Cas:83-72-7

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Synthetic route

2-hydroxy-3-iodonaphthalene-1,4-dione
35135-38-7

2-hydroxy-3-iodonaphthalene-1,4-dione

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogen iodide In dichloromethane at 20℃;100%
morpholine
110-91-8

morpholine

sodium 1,2-naphthoquinone-4-sulfonate
521-24-4

sodium 1,2-naphthoquinone-4-sulfonate

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

4-morpholinonaphthalene-1,2-dione
4569-83-9

4-morpholinonaphthalene-1,2-dione

C

disodium 2-hydroxy-1-oxo-1,4-dihydro-4,4-naphthalenedisulfonate

disodium 2-hydroxy-1-oxo-1,4-dihydro-4,4-naphthalenedisulfonate

Conditions
ConditionsYield
pH=8;A n/a
B 99%
C n/a
1,2,4-triacetyloxynaphthalene
1785-67-7

1,2,4-triacetyloxynaphthalene

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
Stage #1: 1,2,4-triacetyloxynaphthalene With hydrogenchloride In methanol; water at 70℃; for 1h;
Stage #2: With dihydrogen peroxide In water at 20℃;
91.6%
Stage #1: 1,2,4-triacetyloxynaphthalene With hydrogenchloride In methanol; water for 1h; Reflux;
Stage #2: With dihydrogen peroxide In methanol; water
91.6%
With sodium hydroxide; air
2-methoxy-1,4-naphthoquinone
2348-82-5

2-methoxy-1,4-naphthoquinone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With aluminum (III) chloride In dichloromethane at 40℃; for 3h;91%
With aluminum (III) chloride; dichloromethane at -5 - 40℃; for 3h;87.1%
2-(N-phenylsulfinamoyl)-1,4-naphthoquinone

2-(N-phenylsulfinamoyl)-1,4-naphthoquinone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogenchloride for 1h; Heating;90%
2-hydroxy-1,4-dimethoxynaphthalene
74097-20-4

2-hydroxy-1,4-dimethoxynaphthalene

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

4-methoxy-1,2-naphthoquinone
18916-57-9

4-methoxy-1,2-naphthoquinone

Conditions
ConditionsYield
With ammonium cerium(IV) nitrate; water In acetonitrile Yield given;A n/a
B 87%
With ammonium cerium(IV) nitrate; water In acetonitrile Yields of byproduct given;A n/a
B 87%
2--1,4-naphthoquinone

2--1,4-naphthoquinone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogenchloride for 1h; Heating;86%
methyl 1,4-dihydro-1,4-dioxo-3-(1-pyrrolidinyl)-2-naphthoate
159495-45-1

methyl 1,4-dihydro-1,4-dioxo-3-(1-pyrrolidinyl)-2-naphthoate

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogenchloride In methanol; water at 100℃; for 5h;83.3%
1,2-Dihydroxynaphthalene
574-00-5

1,2-Dihydroxynaphthalene

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With KO2 In pyridine; toluene at -10℃; for 6h;80%
With KO2 In pyridine; toluene at -10℃; for 6h; Mechanism; oxidation of other dihydroxynaphthalenes in heterogeneous aprotic media;80%
With crown-ether In pyridine; toluene for 0.0833333h;60%
With potassium superoxide; tetraethylammonium bromide In N,N-dimethyl-formamide at 20℃;56%
With alkaline solution; oxygen
1,3-dihydroxynaphthalene
132-86-5

1,3-dihydroxynaphthalene

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With zirconium phosphate; phthalocyanine[Fe(3+)]; oxygen In acetone at 20℃; for 6h;80%
With oxygen In 1,4-dioxane; water at 20℃; for 6h;79%
With crown-ether In pyridine; toluene for 0.0833333h;60%
4-o-nitrophenylthio-1,2-naphthoquinone
108732-56-5

4-o-nitrophenylthio-1,2-naphthoquinone

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

2-nitrothiophenol
4875-10-9

2-nitrothiophenol

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water for 0.0333333h;A 80%
B n/a
[1,4]naphthoquinone
130-15-4

[1,4]naphthoquinone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
Stage #1: [1,4]naphthoquinone With sulfuric acid In acetic anhydride Cooling with ice;
Stage #2: With methanol; sodium methylate for 4h; Cooling with ice;
70%
With air
Multi-step reaction with 3 steps
1: ZnCl2 / 50 - 60 °C
2: alcohol; hydrochloric acid
3: ice; sulfuric acid; dichromate / 0 °C
View Scheme
3,4-dihydronaphthalene-1(2H)-one
529-34-0

3,4-dihydronaphthalene-1(2H)-one

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With potassium tert-butylate; oxygen In tert-butyl alcohol for 2h;70%
With 18-crown-6 ether; superoxyde de potassium In tetrahydrofuran for 5h; Ambient temperature;63.8%
With potassium tert-butylate In tert-butyl alcohol at 20℃; under 760.051 Torr; for 2h;50%
3,4-Dimethoxy-1-naphthol
70477-38-2

3,4-Dimethoxy-1-naphthol

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

3,4-Dimethoxy-2-(3,4-dimethoxy-1-naphthyloxy)-1(2H)-naphthalinon
88381-94-6

3,4-Dimethoxy-2-(3,4-dimethoxy-1-naphthyloxy)-1(2H)-naphthalinon

Conditions
ConditionsYield
With sodium hydroxide; potassium hexacyanoferrate(III) In waterA n/a
B 65%
2-(2,2-diphenylethyl)-2,3-dihydro-2,3-epoxy-1,4-naphthoquinone
74954-83-9

2-(2,2-diphenylethyl)-2,3-dihydro-2,3-epoxy-1,4-naphthoquinone

A

1,1-Diphenylethylene
530-48-3

1,1-Diphenylethylene

B

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

(3aR,8aS)-3a-Hydroxy-3,3-diphenyl-2,3,3a,8a-tetrahydro-cyclopenta[a]indene-1,8-dione
81847-43-0

(3aR,8aS)-3a-Hydroxy-3,3-diphenyl-2,3,3a,8a-tetrahydro-cyclopenta[a]indene-1,8-dione

C24H18O3
74954-90-8

C24H18O3

Conditions
ConditionsYield
In benzene Quantum yield; Irradiation; other solvent;A 4%
B 5%
C 30%
D 65%
2-t-butyldimethylsilyloxy-5-formyl-6-hydroxy-2-m-methoxyphenyl-2,3-dihydronaphtho<1,2-b><1,4>dioxin

2-t-butyldimethylsilyloxy-5-formyl-6-hydroxy-2-m-methoxyphenyl-2,3-dihydronaphtho<1,2-b><1,4>dioxin

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

1-(3-Methoxyphenyl)ethanone
586-37-8

1-(3-Methoxyphenyl)ethanone

Conditions
ConditionsYield
With hydrogenchloride; iron(III) chloride In ethanol for 3.5h; Heating;A 63%
B 36%
1,4-dimethoxynaphthalene-2-carbaldehyde
75965-83-2

1,4-dimethoxynaphthalene-2-carbaldehyde

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

2-hydroxy-1,4-dimethoxynaphthalene
74097-20-4

2-hydroxy-1,4-dimethoxynaphthalene

C

1,4-dimethoxynaphthalene-2-carboxylic acid
78265-13-1

1,4-dimethoxynaphthalene-2-carboxylic acid

Conditions
ConditionsYield
With selenium(IV) oxide; dihydrogen peroxide In tetrahydrofuran for 96h; Heating;A 8%
B 55%
C 22%
4-methoxy-aniline
104-94-9

4-methoxy-aniline

3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide
117560-06-2

3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

N-(4-methoxyphenyl)phenylamine
1208-86-2

N-(4-methoxyphenyl)phenylamine

C

2-iodo-3-phenoxy-1,4-naphthoquinone
160246-88-8

2-iodo-3-phenoxy-1,4-naphthoquinone

D

3-iodo-4-hydroxy-1,2-naphthoquinone
572874-62-5

3-iodo-4-hydroxy-1,2-naphthoquinone

Conditions
ConditionsYield
With copper(II) bis(trifluoromethanesulfonate) In dichloromethane at 20℃;A n/a
B 43%
C 16%
D 35%
[14C]-58C80
94015-46-0

[14C]-58C80

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

9-t-butyl-6b,7,8,9,10,10a-hexahydrobenzo-(b)naphtho-(2,1-d)furan-5,6-quinone

9-t-butyl-6b,7,8,9,10,10a-hexahydrobenzo-(b)naphtho-(2,1-d)furan-5,6-quinone

C

3-t-butyl-1,2,3,4-tetrahydrobenzo(b)naphtho(2,3-d)furan-6-11-quinone
104907-54-2

3-t-butyl-1,2,3,4-tetrahydrobenzo(b)naphtho(2,3-d)furan-6-11-quinone

D

2-hydroxy-3-(trans-4-t-butylcyclohexyl)-1,4-naphthoquinone
86790-29-6

2-hydroxy-3-(trans-4-t-butylcyclohexyl)-1,4-naphthoquinone

Conditions
ConditionsYield
With sulfuric acid at 55℃; for 40h;A 2.7%
B 35.5%
C 1.1%
D 40.5%
3,4-dihydronaphthalene-1(2H)-one
529-34-0

3,4-dihydronaphthalene-1(2H)-one

Potassium superoxide, 18-Crown-6

Potassium superoxide, 18-Crown-6

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

α-naphthol
90-15-3

α-naphthol

Conditions
ConditionsYield
In toluene for 12h; Var.: Aliquat 336 instead of 18-Crown-6;A 10%
B 38%
In toluene for 12h; Var.: Aliquat 336 instead of 18-Crown-6;A 30%
B 6%
α-naphthol
90-15-3

α-naphthol

Potassium superoxide, 18-Crown-6

Potassium superoxide, 18-Crown-6

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
In toluene exothermic. Var.: Aliquat 336 instead of 18-Crown-6;34%
sodium 1,2-naphthoquinone-4-sulfonate
521-24-4

sodium 1,2-naphthoquinone-4-sulfonate

isopropylamine
75-31-0

isopropylamine

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

4-(1-Methylethyl)-amino-1,2-naphthalindion
86614-18-8

4-(1-Methylethyl)-amino-1,2-naphthalindion

C

2-Isopropylamino-4-[(E)-isopropylimino]-4H-naphthalen-1-one
86614-20-2

2-Isopropylamino-4-[(E)-isopropylimino]-4H-naphthalen-1-one

D

4-Hydroxy-3-[3-isopropylamino-4-oxo-4H-naphthalen-(1Z)-ylideneamino]-naphthalene-1-sulfonic acid
86614-11-1

4-Hydroxy-3-[3-isopropylamino-4-oxo-4H-naphthalen-(1Z)-ylideneamino]-naphthalene-1-sulfonic acid

E

acetone
67-64-1

acetone

Conditions
ConditionsYield
In water for 0.25h; Product distribution; Ambient temperature; other aliphatic amines;A 2%
B 25%
C 1%
D 33%
E n/a
1,2,3,4-tetrahydronaphthalen-2-one
530-93-8

1,2,3,4-tetrahydronaphthalen-2-one

Potassium superoxide, 18-Crown-6

Potassium superoxide, 18-Crown-6

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

2-(2-carboxyethyl)benzoic acid
776-79-4

2-(2-carboxyethyl)benzoic acid

C

β-naphthol
135-19-3

β-naphthol

Conditions
ConditionsYield
In toluene for 12h; Var.: Aliquat 336 instead of 18-Crown-6;A 27%
B 14%
C 5%
1,4-Dihydroxynaphthalene
571-60-8

1,4-Dihydroxynaphthalene

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With KO2 In tetrahydrofuran; toluene at -10℃; for 6h;20%
With sodium hydroxide; H3; dihydrogen peroxide
3-aminopyrazole
1820-80-0

3-aminopyrazole

sodium 1,2-naphthoquinone-4-sulfonate
521-24-4

sodium 1,2-naphthoquinone-4-sulfonate

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

N-(3-pyrazolyl)-1,4-naphthoquinone

N-(3-pyrazolyl)-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogenchloride Heating;A 17%
B 7%
2-Methoxynaphthalene
93-04-9

2-Methoxynaphthalene

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

2-methoxy-1,4-naphthoquinone
2348-82-5

2-methoxy-1,4-naphthoquinone

Conditions
ConditionsYield
With dihydrogen peroxide; methyltrioxorhenium(VII) In acetic acid at 20℃; for 3h;A 16%
B 14%
2-(2-methylpropyl)-2,3-dihydro-2,3-epoxy-1,4-naphthoquinone
73645-16-6

2-(2-methylpropyl)-2,3-dihydro-2,3-epoxy-1,4-naphthoquinone

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

(3aS,8aS)-3a-Hydroxy-3,3-dimethyl-2,3,3a,8a-tetrahydro-cyclopenta[a]indene-1,8-dione
81847-42-9

(3aS,8aS)-3a-Hydroxy-3,3-dimethyl-2,3,3a,8a-tetrahydro-cyclopenta[a]indene-1,8-dione

C

C14H14O3
73645-23-5

C14H14O3

D

9b-Hydroxy-1,1-dimethyl-1,9b-dihydro-2H-naphtho[2,1-b]furan-5-one
73645-25-7

9b-Hydroxy-1,1-dimethyl-1,9b-dihydro-2H-naphtho[2,1-b]furan-5-one

Conditions
ConditionsYield
In benzene Quantum yield; Irradiation; other solvent;A 12%
B n/a
C 12%
D 14%
3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide
117560-06-2

3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide

N-4-methylphenylhydrazine
539-44-6

N-4-methylphenylhydrazine

A

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

B

4-Methylazobenzol
949-87-1

4-Methylazobenzol

Conditions
ConditionsYield
With copper(II) bis(trifluoromethanesulfonate) In dichloromethane at 20℃;A n/a
B 7%
2,3-epoxy-2,3-dihydro-1,4-naphthoquinone
15448-58-5

2,3-epoxy-2,3-dihydro-1,4-naphthoquinone

furan-2,3,5(4H)-trione pyridine (1:1)

furan-2,3,5(4H)-trione pyridine (1:1)

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

α-naphthol
90-15-3

α-naphthol

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With sodium hydroxide; H3; dihydrogen peroxide
With potassium hydroxide; H3; dihydrogen peroxide
Multi-step reaction with 2 steps
1: K2S2O8; aqueous NaOH
2: aqueous H2O2; aq. NaOH solution; H32(O2)2>
View Scheme
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-hydroxy-3-iodonaphthalene-1,4-dione
35135-38-7

2-hydroxy-3-iodonaphthalene-1,4-dione

Conditions
ConditionsYield
With N-iodo-succinimide In dichloromethane for 0.333333h; Reflux;100%
With ammonium iodide; Oxone In methanol for 1h; Reflux;92%
With potassium carbonate; morpholine-iodine complex In water at 20℃; for 3h;87%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

p-toluidine
106-49-0

p-toluidine

2-(p-toluidino)-1,4-naphthoquinone
57182-49-7

2-(p-toluidino)-1,4-naphthoquinone

Conditions
ConditionsYield
In neat (no solvent) at 100℃; under 750.075 Torr; for 0.05h; Microwave irradiation;100%
With acetic acid
With ethanol
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

1,2-diamino-benzene
95-54-5

1,2-diamino-benzene

benzo[a]phenazin-5-ol
2089-82-9

benzo[a]phenazin-5-ol

Conditions
ConditionsYield
at 70℃; for 0.25h; Product distribution; Further Variations:; Temperatures; solid-state reaction;100%
With 1,4-diaza-bicyclo[2.2.2]octane In ethanol91%
With acetic acid at 20℃; for 24h;88%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-chloro-1,4-naphthoquinone
1010-60-2

2-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
With thionyl chloride Heating;100%
With thionyl chloride for 22h; Reflux;100%
With oxalyl dichloride; N,N-dimethyl-formamide In benzene at 50℃; for 0.75h;95%
With thionyl chloride94%
With thionyl chloride at 90℃; for 48h;85%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

[bis(acetoxy)iodo]benzene
3240-34-4

[bis(acetoxy)iodo]benzene

3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide
117560-06-2

3-phenyliodonio-1,2,4-trioxo-1,2,3,4-tetrahydronaphthalenide

Conditions
ConditionsYield
In dichloromethane at 10 - 20℃; for 1h; Inert atmosphere;100%
In chloroform at 20℃; for 5h;91%
In chloroform at 0 - 20℃; for 5h;89%
Benzyloxymethyl chloride
3587-60-8

Benzyloxymethyl chloride

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-benzyloxymethoxy-1,4-naphthoquinone

2-benzyloxymethoxy-1,4-naphthoquinone

Conditions
ConditionsYield
Stage #1: 2-hydroxynaphtho-1,4-quinone With potassium carbonate In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.166667h; Molecular sieve; Inert atmosphere;
Stage #2: Benzyloxymethyl chloride In N,N-dimethyl-formamide; mineral oil at 20℃; for 1h; Molecular sieve; Inert atmosphere; chemoselective reaction;
100%
methanol
67-56-1

methanol

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-methoxy-1,4-naphthoquinone
2348-82-5

2-methoxy-1,4-naphthoquinone

Conditions
ConditionsYield
With sulfuric acid for 5h; Reflux;99%
With hydrogen cation Heating;97%
With sulfuric acid at 65℃; for 14h;91%
ethyl 2-oxo-4-(p-chlorophenyl)but-3-enoate
133678-11-2

ethyl 2-oxo-4-(p-chlorophenyl)but-3-enoate

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

(4R)-ethyl 4-(4-chlorophenyl)-2-hydroxy-5,10-dioxo-3,4,5,10-tetrahydro-2H-benzo[g]chromene-2-carboxylate
1309979-27-8

(4R)-ethyl 4-(4-chlorophenyl)-2-hydroxy-5,10-dioxo-3,4,5,10-tetrahydro-2H-benzo[g]chromene-2-carboxylate

Conditions
ConditionsYield
With 1-(3,5-bis(trifluoromethyl)phenyl)-3-((1S,2S)-2-(piperidin-1-yl)-2,3-dihydro-1H-inden-1-yl)thiourea In 1,2-dichloro-ethane at -20℃; for 24h; Michael addition; optical yield given as %ee; enantioselective reaction;99%
With C40H31F6N3O2 In diethyl ether at 20℃; for 4h; Michael Addition; enantioselective reaction;97%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

ethyl 2-oxo-4-(p-fluorophenyl)but-3-enoate
1375649-28-7

ethyl 2-oxo-4-(p-fluorophenyl)but-3-enoate

(4R)-ethyl 4-(4-fluorophenyl)-2-hydroxy-5,10-dioxo-3,4,5,10-tetrahydro-2H-benzo[g]chromene-2-carboxylate
1309979-25-6

(4R)-ethyl 4-(4-fluorophenyl)-2-hydroxy-5,10-dioxo-3,4,5,10-tetrahydro-2H-benzo[g]chromene-2-carboxylate

Conditions
ConditionsYield
With 1-(3,5-bis(trifluoromethyl)phenyl)-3-((1S,2S)-2-(piperidin-1-yl)-2,3-dihydro-1H-inden-1-yl)thiourea In 1,2-dichloro-ethane at -20℃; for 24h; Michael addition; optical yield given as %ee; enantioselective reaction;99%
With C40H31F6N3O2 In diethyl ether at 20℃; for 4h; Michael Addition; enantioselective reaction;85%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

1-nitro-2-(4-chlorophenyl)ethylene
101671-01-6

1-nitro-2-(4-chlorophenyl)ethylene

(R)-2-[1-(4-chlorophenyl)-2-nitroethyl]-3-hydroxy-1,4-naphthoquinone
1312990-95-6

(R)-2-[1-(4-chlorophenyl)-2-nitroethyl]-3-hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With C22H26F3N3O2 In dichloromethane at 30℃; for 6h; Michael addition; optical yield given as %ee; enantioselective reaction;99%
1H-benzimidazol-2-amine
934-32-7

1H-benzimidazol-2-amine

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

4-nitrobenzaldehdye
555-16-8

4-nitrobenzaldehdye

2-(((1H-benzo[d]imidazol-2-yl)amino)(4-nitrophenyl)methyl)-3-hydroxynaphthalene-1,4-dione
1259091-97-8

2-(((1H-benzo[d]imidazol-2-yl)amino)(4-nitrophenyl)methyl)-3-hydroxynaphthalene-1,4-dione

Conditions
ConditionsYield
With MCM-41 In ethanol at 20℃; for 1.16667h; Green chemistry;99%
With montmorillonite K-10 In ethanol at 20℃; for 8h;93%
With indium(III) chloride In water for 6h; Reflux;80%
2-aminopyridine
504-29-0

2-aminopyridine

pyrimidine-2,4,5,6(1H,3H)-tetraone
61066-33-9, 61066-34-0, 61066-35-1, 61127-23-9

pyrimidine-2,4,5,6(1H,3H)-tetraone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-aminopyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide
1367747-95-2

2-aminopyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide

Conditions
ConditionsYield
In chloroform for 3.5h; Reflux;99%
(5-methyl-pyridin-2-yl)amine
1603-41-4

(5-methyl-pyridin-2-yl)amine

pyrimidine-2,4,5,6(1H,3H)-tetraone
61066-33-9, 61066-34-0, 61066-35-1, 61127-23-9

pyrimidine-2,4,5,6(1H,3H)-tetraone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-amino-5-methylpyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide
1367748-14-8

2-amino-5-methylpyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide

Conditions
ConditionsYield
In chloroform for 1h; Reflux;99%
3-methylpyridin-2-ylamine
1603-40-3

3-methylpyridin-2-ylamine

pyrimidine-2,4,5,6(1H,3H)-tetraone
61066-33-9, 61066-34-0, 61066-35-1, 61127-23-9

pyrimidine-2,4,5,6(1H,3H)-tetraone

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-amino-3-methylpyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide
1367748-05-7

2-amino-3-methylpyridinium 2-(5-hydroxy-2,4,6-trioxohexahydropyrimidin-5-yl)-1,3,4-trioxo-1,2,3,4-tetrahydronaphthalen-2-ide

Conditions
ConditionsYield
In chloroform for 1h; Reflux;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

salicylaldehyde
90-02-8

salicylaldehyde

dimedone
126-81-8

dimedone

3-(3,3-dimethyl-1-oxo-2,3,4,9-tetrahydro-1H-xanthen-9-yl)-4-hydroxynaphthalene-1,2-dione

3-(3,3-dimethyl-1-oxo-2,3,4,9-tetrahydro-1H-xanthen-9-yl)-4-hydroxynaphthalene-1,2-dione

Conditions
ConditionsYield
With L-proline In ethanol at 80℃; for 6h;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

(2-nitroethenyl)benzene
102-96-5

(2-nitroethenyl)benzene

(S)-2-(1-phenyl-2-nitroethyl)-3-hydroxynaphthalene-1,4-dione
1308657-27-3

(S)-2-(1-phenyl-2-nitroethyl)-3-hydroxynaphthalene-1,4-dione

Conditions
ConditionsYield
With C45H40N4O5 In dichloromethane at 20℃; for 24h; Reagent/catalyst; Solvent; Michael Addition; enantioselective reaction;99%
With C35H46N4O10S In toluene at 30℃; for 6h; Michael Addition;96%
With hydrophobic anchor-tagged asymmetric amino thiourea In dichloromethane at 30℃; for 4h; Michael Addition; enantioselective reaction;95%
With 1-[1-(R)-(1-naphthyl)-2,2,2-trifluoroethyl]-3-[(1S,2S)-2-(dimethylamino)cyclohexyl]thiourea In toluene at 20℃; for 24h; Michael Addition;84%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

ethyl 2-oxo-4-(p-nitrophenyl)but-3-enoate
55629-97-5, 28525-87-3

ethyl 2-oxo-4-(p-nitrophenyl)but-3-enoate

C22H17NO8
1460310-39-7

C22H17NO8

Conditions
ConditionsYield
With chiral cyclohexanediamine functionalized calix[4]squaramide In dichloromethane at 25℃; Michael Addition; enantioselective reaction;99%
With C40H31F6N3O2 In diethyl ether at 20℃; for 3h; Michael Addition; enantioselective reaction;95%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

1-acetyl-3-(dicyanomethylene)-1,3-dihydro-2H-indol-2-one
79343-59-2

1-acetyl-3-(dicyanomethylene)-1,3-dihydro-2H-indol-2-one

1′-acetyl-2-amino-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile
1561873-04-8

1′-acetyl-2-amino-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile

Conditions
ConditionsYield
With C29H30F6N4OS In diethyl ether at 20℃; for 24h; Time; Concentration; Michael Addition; enantioselective reaction;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

C14H8ClN3O
1561873-75-3

C14H8ClN3O

1′-allyl-2-amino-4′-chloro-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile
1561873-11-7

1′-allyl-2-amino-4′-chloro-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile

Conditions
ConditionsYield
With C29H30F6N4OS In diethyl ether at 20℃; for 3h; Michael Addition; enantioselective reaction;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2-(4-chloro-2-oxoindolin-3-ylidene)malononitrile
1332338-70-1

2-(4-chloro-2-oxoindolin-3-ylidene)malononitrile

2-amino-4′-chloro-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile
1561872-57-8

2-amino-4′-chloro-2′,5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3′-indoline]-3-carbonitrile

Conditions
ConditionsYield
With C29H30F6N4OS In diethyl ether at 20℃; for 6h; Time; Concentration; Michael Addition; enantioselective reaction;99%
pyrrolidine
123-75-1

pyrrolidine

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

salicylaldehyde
90-02-8

salicylaldehyde

2-hydroxy-3-((2-hydroxyphenyl)(pyrrolidin-1-yl)methyl)naphthalene-1,4-dione
1620161-62-7

2-hydroxy-3-((2-hydroxyphenyl)(pyrrolidin-1-yl)methyl)naphthalene-1,4-dione

Conditions
ConditionsYield
With toluene-4-sulfonic acid In acetonitrile at 20℃; for 1.6h; Mannich Aminomethylation;99%
In ethanol at 20℃; for 24h; Darkness;77%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

4-methyl-benzaldehyde
104-87-0

4-methyl-benzaldehyde

benzo[1,3]dioxolo-5-ylamine
14268-66-7

benzo[1,3]dioxolo-5-ylamine

12-(4-methylphenyl)-5,10-dihydro-benzo[i][1,3]dioxolo[4,5-b]acridine-6,11-dione

12-(4-methylphenyl)-5,10-dihydro-benzo[i][1,3]dioxolo[4,5-b]acridine-6,11-dione

Conditions
ConditionsYield
With L-proline In ethanol for 1h; Reflux; Green chemistry;99%
N-methoxymethylisatin
50899-39-3

N-methoxymethylisatin

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

malononitrile
109-77-3

malononitrile

(R)-2-amino-1'-(methoxymethyl)-2',5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3'-indoline]-3-carbonitrile

(R)-2-amino-1'-(methoxymethyl)-2',5,10-trioxo-5,10-dihydrospiro[benzo[g]chromene-4,3'-indoline]-3-carbonitrile

Conditions
ConditionsYield
With QD-4 In toluene at 20℃; for 23h; Molecular sieve; Inert atmosphere; enantioselective reaction;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

1,3-cylohexanedione
504-02-9

1,3-cylohexanedione

propionaldehyde
123-38-6

propionaldehyde

C19H16O4

C19H16O4

Conditions
ConditionsYield
With silica-supported tungstic acid In neat (no solvent) at 60℃; for 0.0666667h; Sonication; Green chemistry;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

1,3-cylohexanedione
504-02-9

1,3-cylohexanedione

(4-isopropylbenzaldehyde)
122-03-2

(4-isopropylbenzaldehyde)

C26H22O4

C26H22O4

Conditions
ConditionsYield
With silica-supported tungstic acid In neat (no solvent) at 60℃; for 0.0666667h; Sonication; Green chemistry;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

2,4-difluorobenzaldehyde
1550-35-2

2,4-difluorobenzaldehyde

C27H12F2O5

C27H12F2O5

Conditions
ConditionsYield
With silica-supported tungstic acid In neat (no solvent) at 60℃; for 0.0833333h; Sonication; Green chemistry;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

dimedone
126-81-8

dimedone

2-Fluorobenzaldehyde
446-52-6

2-Fluorobenzaldehyde

C25H19FO4

C25H19FO4

Conditions
ConditionsYield
With silica-supported tungstic acid In neat (no solvent) at 60℃; for 0.05h; Sonication; Green chemistry;99%
2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

4-nitrobenzaldehdye
555-16-8

4-nitrobenzaldehdye

4-methoxy-aniline
104-94-9

4-methoxy-aniline

2-hydroxy-3-(((4-methoxyphenyl)amino)(4-nitrophenyl)methyl)naphthalene-1,4-dione

2-hydroxy-3-(((4-methoxyphenyl)amino)(4-nitrophenyl)methyl)naphthalene-1,4-dione

Conditions
ConditionsYield
With Bi(III) immobilized on triazine dendrimer-magnetic Fe3O4 nanoparticle In ethanol at 20℃; for 0.133333h;99%
With montmorillonite K-10 In ethanol at 20℃; for 8.25h;83%
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