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NANJING SUNNY PHARMATECH CO., LTD

Our product has a very high quality and now we are exporting to customers overseas with very positive feedback. With best price, quality and service from Nanjing Sunny, we are confident to set up a very nice cooperation with customers all over the w

3,4-Dihydroxy-5-Nitrobenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's 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. DayangChem can provide different quantities

3-Nitro-4,5-dihydroxybenzaldehyde Manufacturer/High quality/Best price/In stock

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 3,4-Dihydroxy-5-Nitrobenzaldehyde supplier in China

Cas:116313-85-0

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

Entacapone intermediate CAS No.:116313-85-0 3,4-DIHYDROXI-5-NITROBELZALDEHYDE Other name;3-Nitro-4,5-dihydroxybenzaldehyde 1.Specification Appearance:White powder Storage:store in cool and dry Package:acc

CAS:116313-85-0 3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Henan Allgreen Chemical Co.,Ltd

he company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality se T rvice Appearance:Whit

3,4-Dihydroxy-5-nitrobenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

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 3,4-dihydroxy-5-nitrobenzaldehyde

Cas:116313-85-0

Min.Order:1

Negotiable

Type:Other

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ANQING CHICO PHARMACEUTICAL CO.,LTD.

High quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours. 2.Best quality in your requirement. 3.We pay more attention on delivery time, and usually ship on time. 4.Free samples will be provided. 5.Ensure specifications an

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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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

3,4-Dihydroxy-5-nitrobenzaldehyde

Cas:116313-85-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

TIANFU-CHEM 116313-85-0 3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

3-Nitro-4,5-dihydroxybenzaldehyde CAS 116313-85-0

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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

New production CAS 116313-85-0 with best quality

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

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

3-Nitro-4,5-dihydroxybenzaldehyde CAS116313-85-0

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $289.0 / 449.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Name: 3,4-Dihydroxy-5-Nitrobenzaldehyde Molecular Formula:C7H5NO5 Molecular Weight:183.12 CAS No.:116313-85-0 Appearance:Yellowcrystal Powder Appearance:Yellowcrystal Powder Storage:Store in cool and dry place, away from sun light. Package:25kg A

3,4-Dihydroxy-5-Nitrobenzaldehyde CAS:116313-85-0

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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

3-Nitro-4,5-dihydroxybenzaldehyde 116313-85-0

Cas:116313-85-0

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

3-Nitro-4,5-dihydroxybenzaldehyde/ LIDE PHARMA- Factory supply / Best price

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

3-Nitro-4,5-dihydroxybenzaldehyde CAS:116313-85-0 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 qualit

3-Nitro-4,5-dihydroxybenzaldehyde CAS:116313-85-0

Cas:116313-85-0

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

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

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

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

3,4-Dihydroxy-5-nitrobenzaldehyde

Cas:116313-85-0

Min.Order:0

Negotiable

Type:Manufacturers

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Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

3-NITRO-4,5-DIHYDROXYBENZALDEHYDE

Cas:116313-85-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

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

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

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

High quality 3,4-Dihydroxy-5-Nitrobenzaldehyde

Cas:116313-85-0

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

3-Nitro-4,5-dihydroxybenzaldehydeAppearance:Pls see the Details Storage:Keep away of light, hot, water, Store in dry, dark and ventilated place Package:according to customers' requirements Application:Steroids, Cosmetics Ingredients, APIs, Intermedia

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Siwei Development Group Ltd.

Product name: 3-Nitro-4,5-Dihydroxybenzaldehyde CAS No.:116313-85-0 Molecule Formula:C7H5NO5 Molecule Weight:183.12 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard

High Quality 3-Nitro-4,5-Dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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,

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Metric Ton

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 Offer3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: 3-Nitro-4,5-dihydroxybenzaldehyde Synonyms: 3,4-dihydroxy-5-nitro-benzaldehyd;3,4-DIHYDROXY-5-NITROBENZALDEHYDE,SPECIFICATION: >98.5%(HPLC UV);3,4-DIHYDROXY-5-NITROBENZALDEHYDE;3-NITRO-4,5-DIHYDROXYBENZALDEHYDE;3,4-Dihydroxy-5-

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei yanxi chemical co.,LTD.

CHENGDU YANXI is a comprehensive manufacturer and an international distribution of products throughout the world. Specialized in Scrap metal, Chemical raw materials, Paper products and color industry. We aim to become leading position in global dis

3,4-dihydroxy-5-nitro benzyaldehyde (intermediates of Entacapone) CAS#116313-85-0

Cas:116313-85-0

Min.Order:1 Kilogram

FOB Price: $2.0 / 4.0

Type:Trading Company

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

3-Nitro-4,5-dihydroxybenzaldehyde

Cas:116313-85-0

Min.Order:0

Negotiable

Type:Other

inquiry

Synthetic route

isonitrovanillin
6635-20-7

isonitrovanillin

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Conditions
ConditionsYield
With hydrogen bromide; acetic acid In water at 110℃; for 39h;100%
With pyridine; aluminium trichloride In chloroform for 24h; ether cleavage; Heating;98%
With hydrogen bromide; acetic acid In water for 8h; Heating;96%
vanillin
121-33-5

vanillin

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: diethyl ether; mixture of gaseous nitrogen oxides
2: fuming hydrochloric acid / 140 °C
View Scheme
Multi-step reaction with 2 steps
1: nitric acid; acetic acid / 0 - 20 °C
2: hydrogen bromide / water / 4 h / Reflux
View Scheme
Multi-step reaction with 2 steps
1.1: acetic acid; nitric acid / water / 4 h / 15 - 30 °C
2.1: tetrabutylammomium bromide; aluminum (III) chloride / dichloromethane / 0.5 h / 0 - 10 °C / Reflux
2.2: 25 h / 0 - 10 °C / Reflux
View Scheme
isonitrovanillin
6635-20-7

isonitrovanillin

pyrographite
7440-44-0

pyrographite

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Conditions
ConditionsYield
With acetic acid In conc. hydrobromic acid; water5.66 kg (80%)
isovanillin
621-59-0

isovanillin

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: nitric acid / acetic acid
2: aluminum (III) chloride; pyridine / chloroform / Reflux
View Scheme
3-hydroxy-4-methoxy-5-nitrobenzaldehyde
80547-69-9

3-hydroxy-4-methoxy-5-nitrobenzaldehyde

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Conditions
ConditionsYield
With pyridine; aluminum (III) chloride In chloroform Reflux;
N-(3-chlorophenyl)-2-cyanoacetamide
17722-12-2

N-(3-chlorophenyl)-2-cyanoacetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

C16H10ClN3O5
1150310-12-5

C16H10ClN3O5

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;98%
2-cyano-N-(4-methoxyphenyl)acetamide
5382-38-7

2-cyano-N-(4-methoxyphenyl)acetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

C17H13N3O6
1150310-11-4

C17H13N3O6

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;95%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

3,4-dihydroxy-5-nitrobenzoic acid
84211-30-3

3,4-dihydroxy-5-nitrobenzoic acid

Conditions
ConditionsYield
With sodium chlorite; sodium dihydrogenphosphate dihydrate In water; dimethyl sulfoxide at 50℃; for 16.8333h;94%
With xanthin for 20h; pH=7.4; Enzymatic reaction;
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

benzyl bromide
100-39-0

benzyl bromide

3-benzyloxy-4-hydroxy-5-nitro-benzaldehyde
312327-13-2

3-benzyloxy-4-hydroxy-5-nitro-benzaldehyde

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 140℃; for 48h; Alkylation;93%
With sodium hydride In N,N-dimethyl-formamide85%
Stage #1: 3,4-dihydroxy-5-nitrobenzaldehyde With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; Inert atmosphere;
Stage #2: benzyl bromide In N,N-dimethyl-formamide; mineral oil at 0℃; for 1h; Inert atmosphere;
Stage #3: With acetic acid In N,N-dimethyl-formamide; mineral oil at 20℃; Inert atmosphere;
81%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

2-cyano-N-[3-(2-cyanoacetylamino)propyl]acetamide
111233-69-3

2-cyano-N-[3-(2-cyanoacetylamino)propyl]acetamide

(E)-2-Cyano-N-{3-[(E)-2-cyano-3-(3,4-dihydroxy-5-nitro-phenyl)-acryloylamino]-propyl}-3-(3,4-dihydroxy-5-nitro-phenyl)-acrylamide

(E)-2-Cyano-N-{3-[(E)-2-cyano-3-(3,4-dihydroxy-5-nitro-phenyl)-acryloylamino]-propyl}-3-(3,4-dihydroxy-5-nitro-phenyl)-acrylamide

Conditions
ConditionsYield
With 3-amino propanoic acid In ethanol for 4.5h; Heating;92%
2-cyano-N-m-tolylacetamide
54153-19-4

2-cyano-N-m-tolylacetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

C17H13N3O5
1150310-10-3

C17H13N3O5

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;89%
2-(pyrimidin-4-yl)acetonitrile
794522-90-0

2-(pyrimidin-4-yl)acetonitrile

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyrimidin-4-yl)acrylonitrile

3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyrimidin-4-yl)acrylonitrile

Conditions
ConditionsYield
With ammonium acetate In methanol at 80℃; for 4h;89%
3-(N,N-diphenylamino)-3-oxopropanenitrile
51838-06-3

3-(N,N-diphenylamino)-3-oxopropanenitrile

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

C22H15N3O5
1150310-09-0

C22H15N3O5

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;88%
2-(pyrimidin-2-yl)acetonitrile
59566-45-9

2-(pyrimidin-2-yl)acetonitrile

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyrimidin-2-yl)acrylonitrile

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyrimidin-2-yl)acrylonitrile

Conditions
ConditionsYield
With ammonium acetate In methanol for 5h; Reflux;88%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

ethylene dibromide
106-93-4

ethylene dibromide

8-nitro-2,3-dihydro-benzo[1,4]dioxine-6-carbonitrilebenzonitrile
698986-32-2

8-nitro-2,3-dihydro-benzo[1,4]dioxine-6-carbonitrilebenzonitrile

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 5h;87%
5-chlorobenzofuran-3(2H)-one
3261-05-0

5-chlorobenzofuran-3(2H)-one

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(2Z)-5-chloro-2-[(3,4-dihydroxy-5-nitrophenyl)methylidene]benzofuran-3-one

(2Z)-5-chloro-2-[(3,4-dihydroxy-5-nitrophenyl)methylidene]benzofuran-3-one

Conditions
ConditionsYield
With hydrogenchloride In water; isopropyl alcohol at 80℃;86%
malonic acid
141-82-2

malonic acid

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(E)-3-(3,4-dihydroxy-5-nitrophenyl)acrylic acid

(E)-3-(3,4-dihydroxy-5-nitrophenyl)acrylic acid

Conditions
ConditionsYield
With pyridine; aniline In toluene for 2h; Reflux;84.6%
With piperidine; pyridine at 60℃; for 48h; Knoevenagel Condensation;40%
piperidine
110-89-4

piperidine

2-cyano-N,N-diethylacetamide
26391-06-0

2-cyano-N,N-diethylacetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

entacapone; piperidine salt
1047659-01-7

entacapone; piperidine salt

Conditions
ConditionsYield
With acetic acid In isopropyl alcohol for 3h; Product distribution / selectivity; Heating / reflux;79.7%
4-cyanoacetylmorpholine
15029-32-0

4-cyanoacetylmorpholine

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

C14H13N3O6
1150310-16-9

C14H13N3O6

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;78%
With ammonium acetate In methanol for 5h; Reflux;19%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

cyclopentanone
120-92-3

cyclopentanone

2,5-bis(3,4-dihydroxy-5-nitrobenzylidene)cyclopentanone
116313-82-7

2,5-bis(3,4-dihydroxy-5-nitrobenzylidene)cyclopentanone

Conditions
ConditionsYield
With hydrogenchloride In methanol at 5℃;77%
4.4 g (78%)
3-(3-methoxyisoxazol-5-yl)-3-oxopropanenitrile

3-(3-methoxyisoxazol-5-yl)-3-oxopropanenitrile

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(3-methoxyisoxazole-5-carbonyl)acrylonitrile

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(3-methoxyisoxazole-5-carbonyl)acrylonitrile

Conditions
ConditionsYield
With ammonium acetate In methanol for 3h; Reflux;76%
2-cyano-N,N-diethylacetamide
26391-06-0

2-cyano-N,N-diethylacetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

entacapone
130929-57-6

entacapone

Conditions
ConditionsYield
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With piperidine In 1,2-dimethoxyethane; n-heptane for 15 - 25h; Heating / reflux;
Stage #2: In dichloromethane at 25 - 35℃; for 24h; Product distribution / selectivity;
75%
With piperidine In isopropyl alcohol for 12 - 15h; Heating / reflux;75.5%
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With acetic acid; diethylamine In toluene Knoevenagel Condensation;
Stage #2: With hydrogen bromide In acetic acid; toluene at 20℃;
73.8%
2-cyano-N,N-diethylacetamide
26391-06-0

2-cyano-N,N-diethylacetamide

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

A

entacapone
130929-57-6

entacapone

B

(2Z)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide
145195-63-7

(2Z)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide

Conditions
ConditionsYield
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With piperidine In isopropyl alcohol for 12 - 15h; Heating / reflux;
Stage #2: With acetic acid In isopropyl alcohol at 20℃;
A 75.5%
B n/a
piperidine; methylamine hydrochloride In butan-1-ol at 82℃; for 4 - 5h; Product distribution / selectivity;
piperidine; methylamine hydrochloride In i-Amyl alcohol at 89 - 90℃; for 3h; Product distribution / selectivity;
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

6-nitrobenzene-1,2,4-triol

6-nitrobenzene-1,2,4-triol

Conditions
ConditionsYield
With dihydrogen peroxide; sodium hydroxide In methanol; water at 60℃; for 3h;75%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

2-(pyridazin-3-yl)acetonitrile
27349-80-0

2-(pyridazin-3-yl)acetonitrile

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyridazin-3-yl)acrylonitrile

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(pyridazin-3-yl)acrylonitrile

Conditions
ConditionsYield
With ammonium acetate In methanol at 80℃; for 4h;75%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

diethyl malonate
105-53-3

diethyl malonate

diethyl 2-(3,4-dihydroxy-5-nitrobenzylidene)malonate

diethyl 2-(3,4-dihydroxy-5-nitrobenzylidene)malonate

Conditions
ConditionsYield
With piperidine; pyridine at 60℃; for 7h; Knoevenagel Condensation;69.01%
2-(1,2,4-thiadiazol-5-yl)acetonitrile

2-(1,2,4-thiadiazol-5-yl)acetonitrile

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(1,2,4-thiadiazol-5-yl)acrylonitrile

(E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(1,2,4-thiadiazol-5-yl)acrylonitrile

Conditions
ConditionsYield
With ammonium acetate In methanol for 5h; Reflux;69%
3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

acetophenone
98-86-2

acetophenone

3-(3,4-dihydroxy-5-nitrophenyl)-1-phenylprop-2-en-1-one
116313-76-9

3-(3,4-dihydroxy-5-nitrophenyl)-1-phenylprop-2-en-1-one

Conditions
ConditionsYield
With hydrogenchloride In methanol68%
hydrogen ethyl malonate
1071-46-1

hydrogen ethyl malonate

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

ethyl (E)-3-(3,4-dihydroxy-5-nitrophenyl)acrylate

ethyl (E)-3-(3,4-dihydroxy-5-nitrophenyl)acrylate

Conditions
ConditionsYield
With piperidine; pyridine at 60℃; for 24h; Knoevenagel Condensation;67.44%
neopentyl α-cyanoacetate
88107-40-8

neopentyl α-cyanoacetate

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

Neopentyl 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylate

Neopentyl 2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylate

Conditions
ConditionsYield
67%
1-cyanoacetylpiperidine
15029-30-8

1-cyanoacetylpiperidine

3,4-dihydroxy-5-nitrobenzaldehyde
116313-85-0

3,4-dihydroxy-5-nitrobenzaldehyde

(2E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(piperidin-yl-1-carbonyl)prop-2-ennitrile
1150310-15-8

(2E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(piperidin-yl-1-carbonyl)prop-2-ennitrile

Conditions
ConditionsYield
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux;67%
With ammonium acetate In methanol for 3h; Reflux;13%

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