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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

2,3-Dimethyl-1,4-benzoquinone

Cas:526-86-3

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

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

Pharmaceutical Grade CAS 526-86-3 with competitive price

Cas:526-86-3

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione:cas:526-86-3

Cas:526-86-3

Min.Order:1 Metric Ton

FOB Price: $20.0 / 30.0

Type:Trading Company

inquiry

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

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl- 526-86-3

Cas:526-86-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-/ LIDE PHARMA- Factory supply / Best price

Cas:526-86-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione CAS:526-86-3 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 q

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione CAS:526-86-3

Cas:526-86-3

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-

Cas:526-86-3

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-

Cas:526-86-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0 Metric Ton

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

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

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

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology 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 chemicals. W

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in

SAGECHEM/ 2,3-Dimethyl-1,4-benzoquinone /Manufacturer in China

Cas:526-86-3

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

2,3-Dimethyl-1,4-benzoquinone

Cas:526-86-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-

Cas:526-86-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

best seller Application:API

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

2,3-Dimethyl-1,4-benzoquinone cas 526-86-3Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

2,3-Dimethyl-1,4-benzoquinone cas 526-86-3

Cas:526-86-3

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

526-86-3

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Muhuang Technology Co., Ltd

best seller Application:API

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hunan Russell Chemicals Technology Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione 526-86-3

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shenzhen Foris Technology Co. LTD

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione 526-86-3

Cas:526-86-3

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

LEAP CHEM Co., Ltd.

Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP

2,3-Dimethyl-1,4-benzoquinone

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

NUTROCHEM- MANUFACTURE PLACE

best seller Application:API

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Amadis Chemical Co., Ltd.

1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Cas:526-86-3

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Wuhan Sun-shine Bio-technology Corporation Limited

Wuhan Sun-shine Bio-technology Corporation Limited is specializing in the anticancer, antitumor,heart head blood-vessel,pharmaceutical intermediates,fine Chemicals production and customization..Company has strong ability of research and developme

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione/Skype: marketing_31432

Cas:526-86-3

Min.Order:100 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With benzyltrimethylammonium tribromide; sodium acetate In dichloromethane; water for 2h; Ambient temperature;100%
With oxygen; Nitrogen dioxide In dichloromethane at -10℃; for 12h;100%
With oxygen; Nitrogen dioxide In dichloromethane at -10℃; for 12h;100%
2,3-dibromo-5,6-dimethylcyclohexa-2,5-diene-1,4-dione
38969-08-3

2,3-dibromo-5,6-dimethylcyclohexa-2,5-diene-1,4-dione

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With iron; acetic acid at 20℃; for 6h; Reflux;96.3%
3,6-dimethoxy-o-xylene
39021-83-5

3,6-dimethoxy-o-xylene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With cerium(IV) ammonium nitrate; silica gel In dichloromethane for 0.25h;93%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water63%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water1.68 g
2,3-Dimethylphenol
526-75-0

2,3-Dimethylphenol

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With potassiuim nitrosodisulfonate; sodium acetate In water75%
With potassium dihydrogenphosphate; potassium nitrososulfonate In acetone at 20℃; for 0.666667h;65%
With potassium dihydrogenphosphate; K4(ON(SO3)2)2 In water at 5℃; for 1h;60%
2,3-dimethyl-cyclohex-3-ene-1,2-diol
869163-88-2

2,3-dimethyl-cyclohex-3-ene-1,2-diol

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

Conditions
ConditionsYield
With silica gel; pyridinium chlorochromate In dichloromethane at 20℃; for 1h;A n/a
B 67%
C16H18O2

C16H18O2

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
In toluene for 24h; retro Diels-Alder reaction; Heating;49%
2-Methyl-1,4-benzoquinone
553-97-9

2-Methyl-1,4-benzoquinone

tert-butyl alcohol
75-65-0

tert-butyl alcohol

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3,5-Trimethyl-1,4-benzoquinone
935-92-2

2,3,5-Trimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With iron(III)-acetylacetonate; bis-[(trifluoroacetoxy)iodo]benzene at 120℃; for 5h; Sealed tube; Green chemistry;A 16%
B 42%
2,3-dimethyl-N-(phenylsulfonyl)aniline
126494-77-7

2,3-dimethyl-N-(phenylsulfonyl)aniline

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With ammonium cerium(IV) nitrate In water; acetic acid for 24h; Ambient temperature;41%
C15H16O2
890898-40-5

C15H16O2

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
In toluene for 28h; retro Diels-Alder reaction; Heating;35%
2,3-Dimethylphenol
526-75-0

2,3-Dimethylphenol

lead(IV) tetraacetate
546-67-8

lead(IV) tetraacetate

acetic acid
64-19-7

acetic acid

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

(RS)-6-Acetoxy-5,6-dimethyl-2,4-cyclohexadien-1-on
7218-20-4

(RS)-6-Acetoxy-5,6-dimethyl-2,4-cyclohexadien-1-on

C

6,6-diacetoxy-2,3-dimethyl-cyclohexa-2,4-dienone
91497-83-5

6,6-diacetoxy-2,3-dimethyl-cyclohexa-2,4-dienone

2,3-Dimethylaniline
87-59-2

2,3-Dimethylaniline

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With sodium dichromate; sulfuric acid at 5 - 10℃;
With chromium(III) oxide; sulfuric acid
With potassium dichromate; sulfuric acid
o-xylene
95-47-6

o-xylene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With dihydrogen peroxide; Hexafluoroacetone In 1,2-dichloro-ethane at 70℃; for 4h; Yield given;
2,3-dimethylcyclohex-2-en-1-one
1122-20-9

2,3-dimethylcyclohex-2-en-1-one

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With N-hydroxyphthalimide; sodium perchlorate In pyridine; acetonitrile Ambient temperature; electrochemical oxidation, 1.5 F/mol;
2,3-Dimethylphenol
526-75-0

2,3-Dimethylphenol

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3-dimethyl-6-nitrophenol
6665-95-8

2,3-dimethyl-6-nitrophenol

C

5,6-dimethyl-6-nitrocyclohexa-2,4-dienone
77815-17-9

5,6-dimethyl-6-nitrocyclohexa-2,4-dienone

D

2,3-dimethyl-4-nitrocyclohexa-2,5-dienone
115822-05-4

2,3-dimethyl-4-nitrocyclohexa-2,5-dienone

Conditions
ConditionsYield
With Nitrogen dioxide In chloroform-d1 at -60℃; Further byproducts given;A 13 % Spectr.
B 18 % Spectr.
C 22 % Spectr.
D 31 % Spectr.
2,3-Dimethylphenol
526-75-0

2,3-Dimethylphenol

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

3,4-dimethyl-1,2-benzoquinone
4542-65-8

3,4-dimethyl-1,2-benzoquinone

Conditions
ConditionsYield
With {Ru(IV)(2,2'-bipyridine)2(pyridine)O}(2+) In [D3]acetonitrile at 25℃; Mechanism; Product distribution;A 89 % Spectr.
B 11 % Spectr.
4-amino-2,3-dimethylphenol
3096-69-3

4-amino-2,3-dimethylphenol

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With iron(III) chloride Yield given;
2,3-dimethyl-5-phenylsulfonyl-1,4-benzoquinone
145746-45-8

2,3-dimethyl-5-phenylsulfonyl-1,4-benzoquinone

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3-dimethyl-5-phenylsulfonylhydroquinone
30771-72-3

2,3-dimethyl-5-phenylsulfonylhydroquinone

Conditions
ConditionsYield
With sodium acetate In methanol; water at 24℃; Equilibrium constant; further compound;
With sodium acetate In methanol; water at 24℃; Equilibrium constant;
2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione
144760-89-4

2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3-Dimethyl-6-p-tolylthiohydrochinon
30771-66-5

2,3-Dimethyl-6-p-tolylthiohydrochinon

Conditions
ConditionsYield
With sodium acetate In methanol; water at 24℃; Equilibrium constant;
2,3-dimethyl-1,4-benzoquinone radical anion
87810-91-1

2,3-dimethyl-1,4-benzoquinone radical anion

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

Conditions
ConditionsYield
In water at 22℃; Rate constant;
2,3-Dimethylaniline
87-59-2

2,3-Dimethylaniline

chromic acid

chromic acid

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

4-amino-2,3-dimethyl-phenol hydrochloride

4-amino-2,3-dimethyl-phenol hydrochloride

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With water; iron(III) chloride
With sulfuric acid; sodium nitrite anschliessend Erwaermen;
With sodium dichromate; sulfuric acid
alkaline aqueous sodium-<2.3-dimethyl-phenolate>-solution

alkaline aqueous sodium-<2.3-dimethyl-phenolate>-solution

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With 4-sulfo-benzenediazonium-(1)-betaine at 0℃; anschliessendes Behandeln mit Na2S2O4 und Erhitzen des erhaltenen 4-Amino-2.3-dimethyl-phenols mit wss. H2SO4 und MnO2 (oder Fe2 (SO4)(3) unter Durchleiten von Wasserdampf;
2-methyl-2-cyclohexen-1-one
1121-18-2

2-methyl-2-cyclohexen-1-one

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 68 percent / toluene / 4 h / Heating
2: 71 percent / tetrahydrofuran; diethyl ether
3: PCC; SiO2 / CH2Cl2 / 1 h / 20 °C
View Scheme
2-Methyl-6-acetoxy-cyclohexen-(2)-on
16963-13-6

2-Methyl-6-acetoxy-cyclohexen-(2)-on

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 71 percent / tetrahydrofuran; diethyl ether
2: PCC; SiO2 / CH2Cl2 / 1 h / 20 °C
View Scheme
p-(2,3-dimethyl-4-hydroxyphenylazo)benzenesulphonic acid
78660-13-6

p-(2,3-dimethyl-4-hydroxyphenylazo)benzenesulphonic acid

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium dithionite
2: aq. ferric chloride
View Scheme
iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With sulfuric acid In acetic acid13.0 g (95%)
iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

diethylenetriamine-N,N,N',N",N"-pentaacetic acid pentasodium salt
140-01-2

diethylenetriamine-N,N,N',N",N"-pentaacetic acid pentasodium salt

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With sulfuric acid; dihydrogen peroxide In dichloromethane; acetic acid11.8 g (87%)
(1'R,4'S,4a'R,8a'S)-6',7'-dimethyl-1',4',4a',8a'-tetrahydrospiro[cyclopropane-1,9'-[1,4]methanonaphthalene]-5',8'-dione

(1'R,4'S,4a'R,8a'S)-6',7'-dimethyl-1',4',4a',8a'-tetrahydrospiro[cyclopropane-1,9'-[1,4]methanonaphthalene]-5',8'-dione

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

spiro[2.4]hepta-4,6-diene
765-46-8

spiro[2.4]hepta-4,6-diene

Conditions
ConditionsYield
In toluene for 28h; Reflux;
alizarin red S
130-22-3

alizarin red S

A

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

B

3,4,5-trihydroxy-9,10-dioxodihydroanthracene-2-sulfonic acid

3,4,5-trihydroxy-9,10-dioxodihydroanthracene-2-sulfonic acid

C

6-formyl-3,4-dihydroxy-5,8-dioxo-5,8-dihydronaphthalene-2-sulphonic acid

6-formyl-3,4-dihydroxy-5,8-dioxo-5,8-dihydronaphthalene-2-sulphonic acid

D

C6H7O7S(1-)*Na(1+)

C6H7O7S(1-)*Na(1+)

E

sulfur trioxide
7446-11-9

sulfur trioxide

F

benzene-1,2-dicarboxylic acid
88-99-3

benzene-1,2-dicarboxylic acid

G

crotonaldehyde
123-73-9

crotonaldehyde

Conditions
ConditionsYield
With chromium oxide; water for 0.333333h; pH=7; Catalytic behavior; Reagent/catalyst; UV-irradiation;
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

2-(triisopropylsiloxy)-1,3-butadiene
139278-54-9

2-(triisopropylsiloxy)-1,3-butadiene

(4αR,8aS)-2,3-dimethyl-6-(triisopropyl-silanyloxy)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

(4αR,8aS)-2,3-dimethyl-6-(triisopropyl-silanyloxy)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

Conditions
ConditionsYield
(S)-oxazaborolidine-aluminum bromide at -78℃; for 1h; Diels-Alder reaction;99%
With triflimide activated chiral oxazaborolidine In dichloromethane at -95℃; for 2h;98%
With oxazaborolidinium(1+)*Tf2N(1-) In dichloromethane at -95℃; for 2h; Diels-Alder reaction;98%
With chiral oxazaborolidinium triflimide catalyst In dichloromethane at -95℃; for 2h; Diels-Alder reaction;98%
3,4-diphenyl-2H-isoquinolin-1-one
93119-96-1

3,4-diphenyl-2H-isoquinolin-1-one

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

3,4-dimethyl-12'-phenyl-5'H-spiro[cyclohex[3]ene-1,7'-isoindolo[2,1-b]isoquinoline]-2,5,5'-trione

3,4-dimethyl-12'-phenyl-5'H-spiro[cyclohex[3]ene-1,7'-isoindolo[2,1-b]isoquinoline]-2,5,5'-trione

Conditions
ConditionsYield
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; copper(II) acetate monohydrate In toluene at 120℃; for 12h; Reagent/catalyst; Temperature; Inert atmosphere; Schlenk technique;99%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

methyllithium
917-54-4

methyllithium

A

4-Hydroxy-2,3,4-trimethyl-cyclohexa-2,5-dienone
74894-32-9

4-Hydroxy-2,3,4-trimethyl-cyclohexa-2,5-dienone

B

1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

C

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

Conditions
ConditionsYield
In diethyl ether at -78℃; for 1h;A 96%
B n/a
C 2%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

A

1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

B

2,3-dimethyl-1,4-dihydroxybenzene
608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

Conditions
ConditionsYield
With methyllithium In tetrahydrofuran; diethyl ether at -78℃; for 1h;A 96%
B 4%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

trimethyl(2-methylenebut-3-enyl)silane
70901-64-3

trimethyl(2-methylenebut-3-enyl)silane

(4aR,8aS)-2,3-dimethyl-6-(trimethyl-silanylmethyl)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

(4aR,8aS)-2,3-dimethyl-6-(trimethyl-silanylmethyl)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

Conditions
ConditionsYield
With triflimide activated chiral oxazaborolidine In toluene at -78℃; for 5h;96%
methanol
67-56-1

methanol

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

2-chloro-5,6-dimethyl-4-methoxyphenol
864514-96-5

2-chloro-5,6-dimethyl-4-methoxyphenol

Conditions
ConditionsYield
Stage #1: methanol With acetyl chloride at 0℃; for 0.5h;
Stage #2: 2,3-dimethyl-1,4-benzoquinone at 20℃;
96%
bis(ethylene)(tricyclohexylphosphine)platinum
57158-83-5

bis(ethylene)(tricyclohexylphosphine)platinum

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

ethylene(5-6-η-2,3-dimethylbenzo-1,4-quinone)(tricyclohexylphosphine)platinum
77115-61-8

ethylene(5-6-η-2,3-dimethylbenzo-1,4-quinone)(tricyclohexylphosphine)platinum

Conditions
ConditionsYield
In diethyl ether carried out under dry nitrogen atm., stirring of mixture for 30 min, at room temp.; ppt. removed from mother-liquor, washed with light petroleum, addn. of washings to mother-liquor, soln. reduced in volume giving additional solid, combined crystals washed with light petroleum, elem. anal.;95%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

1-benzyl-3-vinyl-1H-indole
79670-21-6

1-benzyl-3-vinyl-1H-indole

(4aS,11aS,11bS)-11-benzyl-2,3-dimethyl-5,11,11a,11b-tetrahydro-1H-benz o[a]carbazole-1,4(4aH)-dione

(4aS,11aS,11bS)-11-benzyl-2,3-dimethyl-5,11,11a,11b-tetrahydro-1H-benz o[a]carbazole-1,4(4aH)-dione

Conditions
ConditionsYield
With C100H112MgO8P2 In methyl cyclohexane at -25℃; Diels-Alder Cycloaddition; Molecular sieve; Inert atmosphere; enantioselective reaction;95%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

dimethyl 2,2-di(prop-2-ynyl)malonate
63104-44-9

dimethyl 2,2-di(prop-2-ynyl)malonate

dimethyl 6,7-dimethyl-5,8-dioxo-1,3,5,8-tetrahydro-2H-cyclopenta[b]naphthalene-2,2-dicarboxylate

dimethyl 6,7-dimethyl-5,8-dioxo-1,3,5,8-tetrahydro-2H-cyclopenta[b]naphthalene-2,2-dicarboxylate

Conditions
ConditionsYield
With [RhCl(cis-cyclooctene)2]2; 4,4',4''-phosphanetriyltribenzonitrile In 1,2-dichloro-ethane at 70℃; for 18h; Inert atmosphere;91%
With chlorobis(cyclooctene)rhodium(I) dimer; 4,4',4''-phosphanetriyltribenzonitrile In 1,2-dichloro-ethane at 70℃; for 18h; Inert atmosphere;91%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

(3-methyl-2-butenyl)trifluorosilane
114067-34-4

(3-methyl-2-butenyl)trifluorosilane

2,3-dimethyl-5-(3-methyl-2-buten-1-yl)-2,5-cyclohexadiene-1,4-dione
2134-79-4

2,3-dimethyl-5-(3-methyl-2-buten-1-yl)-2,5-cyclohexadiene-1,4-dione

Conditions
ConditionsYield
With iron(III) chloride In formamide at 40℃; for 23h;90%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

allyl-trimethyl-silane
762-72-1

allyl-trimethyl-silane

6-allyl-2,3-dimethylbenzene-1,4-diol
66557-15-1

6-allyl-2,3-dimethylbenzene-1,4-diol

Conditions
ConditionsYield
With bismuth(lll) trifluoromethanesulfonate In dichloromethane at 20℃; for 0.25h;90%
bis(cycloocta-1,5-diene)platinum(0)
12130-66-4

bis(cycloocta-1,5-diene)platinum(0)

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

{Pt(C6H2(CH3)2O2)(C8H12)}
77115-54-9

{Pt(C6H2(CH3)2O2)(C8H12)}

Conditions
ConditionsYield
In diethyl ether mixing under dry nitrogen atm. between -30 and -50°C; ppt. washing with light petroleum at -30°C, dried in vac.;90%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

acetic anhydride
108-24-7

acetic anhydride

1,2,5-triacetoxy-3,4-dimethyl-benzene
5091-02-1

1,2,5-triacetoxy-3,4-dimethyl-benzene

Conditions
ConditionsYield
With bismuth(lll) trifluoromethanesulfonate In acetonitrile at 20℃; for 0.916667h; Thiele-Winter acetoxylation;85%
With boron trifluoride diethyl etherate for 3h; Ambient temperature;77%
With boron trifluoride diethyl etherate
With sulfuric acid
With boron trifluoride diethyl etherate
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

3-ethoxysalicylaldehyde
492-88-6

3-ethoxysalicylaldehyde

5-ethoxy-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

5-ethoxy-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

Conditions
ConditionsYield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;85%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

1,5-dimethyl-4-amino-1,2,4-triazolium-3-thiolate
61230-66-8

1,5-dimethyl-4-amino-1,2,4-triazolium-3-thiolate

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

Toluene-4-sulfonate4-amino-3-(2,5-dihydroxy-3,4-dimethyl-phenylsulfanyl)-1,5-dimethyl-4H-[1,2,4]triazol-1-ium;
88305-42-4

Toluene-4-sulfonate4-amino-3-(2,5-dihydroxy-3,4-dimethyl-phenylsulfanyl)-1,5-dimethyl-4H-[1,2,4]triazol-1-ium;

Conditions
ConditionsYield
In methanol for 24h; Ambient temperature;84%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

2,3-dimethyl-buta-1,3-diene
513-81-5

2,3-dimethyl-buta-1,3-diene

2,3,6,7-tetramethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone
38312-84-4

2,3,6,7-tetramethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone

Conditions
ConditionsYield
With acetic acid at 25 - 27℃; for 24h;84%
In benzene for 4h; Heating;80%
With acetic acid
In ethanol Addition; Diels-Alder; Heating;
1-methylspiro<2,4>-4,6-heptadiene
4308-80-9, 59137-73-4

1-methylspiro<2,4>-4,6-heptadiene

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

C16H18O2

C16H18O2

Conditions
ConditionsYield
With cetyltrimethylammonim bromide In water at 20℃; for 5h; Diels-Alder reaction;84%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

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

1,2-diamino-benzene

3,4-dimethylphenazin-2-ol
92148-75-9

3,4-dimethylphenazin-2-ol

Conditions
ConditionsYield
With acetic acid at -10℃; for 1h;84%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

4-methylsalicylaldehyde
698-27-1

4-methylsalicylaldehyde

1,4-dihydroxy-2,3,6-trimethyl-9H-xanthen-9-one

1,4-dihydroxy-2,3,6-trimethyl-9H-xanthen-9-one

Conditions
ConditionsYield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;84%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

isoprene
78-79-5

isoprene

2,3,6-trimethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone
59832-86-9

2,3,6-trimethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone

Conditions
ConditionsYield
In benzene for 4h; Heating;83%
In ethanol Addition; Diels-Alder; Heating;
In ethanol at 80℃; for 3h; Diels-Alder reaction;
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

para-thiocresol
106-45-6

para-thiocresol

2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione
144760-89-4

2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione

Conditions
ConditionsYield
palladium diacetate In tetrahydrofuran at 20℃; for 4h;83%
methanol
67-56-1

methanol

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

5-methoxy-2,3-dimethylcyclohexa-2,5-diene-1,4-dione
2913-46-4

5-methoxy-2,3-dimethylcyclohexa-2,5-diene-1,4-dione

Conditions
ConditionsYield
With oxygen; cobalt(II) acetate at 60℃; for 47h; Darkness;82%
(i) Ac2O, H2SO4, (ii) /BRN= 1098229/, (iii) AgNO3; Multistep reaction;
2,3-dihydro-2H-furan
1191-99-7

2,3-dihydro-2H-furan

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

(+)-2,3,3aR,8aS-tetrahydro-5-hydroxy-6,7-dimethyl-[2,3-d]-benzo[b]furan

(+)-2,3,3aR,8aS-tetrahydro-5-hydroxy-6,7-dimethyl-[2,3-d]-benzo[b]furan

Conditions
ConditionsYield
With (S)-α,α-diphenyl-2-pyrrolidinemethanol derived catalyst In dichloromethane; acetonitrile at -78 - 23℃; for 7h;82%
meso-diethyl 2,7-diacetamido-4,5-dimethylenoctane-1,8-dioate
144332-84-3

meso-diethyl 2,7-diacetamido-4,5-dimethylenoctane-1,8-dioate

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

meso-diethyl 3,3'-(6,7-dimethyl-5,8-dioxo-5,8-dihydronaphthalene-2,3-diyl)bis(2-acetamidopropanoate)
936823-39-1

meso-diethyl 3,3'-(6,7-dimethyl-5,8-dioxo-5,8-dihydronaphthalene-2,3-diyl)bis(2-acetamidopropanoate)

Conditions
ConditionsYield
Stage #1: meso-diethyl 2,7-diacetamido-4,5-dimethylenoctane-1,8-dioate; 2,3-dimethyl-1,4-benzoquinone In toluene at 110℃; for 48h; Diels-Alder reaction;
Stage #2: With manganese(IV) oxide In 1,4-dioxane at 20℃; for 48h; Further stages.;
82%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

anthracene
120-12-7

anthracene

2,3-dimethyltriptycene-1,4-quinone

2,3-dimethyltriptycene-1,4-quinone

Conditions
ConditionsYield
With chloranil; acetic acid at 125℃; for 16h;82%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

5-fluoro-2-hydroxybenzaldehyde
347-54-6

5-fluoro-2-hydroxybenzaldehyde

7-fluoro-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

7-fluoro-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

Conditions
ConditionsYield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;82%
2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

(E)-cinnamyl(tributyl)tin
74785-32-3

(E)-cinnamyl(tributyl)tin

5-(trans-cinnamyl)-2,3-dimethylhydroquinone
74792-69-1

5-(trans-cinnamyl)-2,3-dimethylhydroquinone

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In dichloromethane at -78℃;81%

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