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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-Dihydroxybenzoic acid Manufacturer/High quality/Best price/In stock

Cas:303-38-8

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 2,3-Dihydroxybenzoicacid supplier in China

Cas:303-38-8

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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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

High Content Natural Extract 2,3-Dihydroxybenzoic acid HACCP manufacturer

Cas:303-38-8

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

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Hubei DiBo chemical co., LTD

Name:2,3-Dihydroxybenzoic acid CAS NO:303-38-8 Grade:Medical scientific research and export Molecular formula:C7H6O4 Molecular weight:154.12 Product Quality 12 years of chemical raw materials Mature operation of the industry System stabili

2,3-Dihydroxybenzoic acid/cas:303-38-8/Raw material spot

Cas:303-38-8

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

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Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 6 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

303-38-8 2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:1 Kilogram

FOB Price: $1000.0

Type:Lab/Research institutions

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Jinan Finer Chemical Co., Ltd

Product Description Product name 2,3-Dihydroxybenzoic acid CAS 303-38-8 Assay 99% Appearance white powd

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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 303-38-8 with best quality

Cas:303-38-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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

Benzoicacid, 2,3-dihydroxy- 303-38-8

Cas:303-38-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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 presen

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:10 Gram

FOB Price: $2985.0

Type:Trading Company

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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

2,3-Dihydroxybenzoic acid

Cas:303-38-8

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

CAS NO.:303-38-8

Cas:303-38-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hubei CuiRan Biotechnology Co., Ltd

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medicine)

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

PRODUCT DETAILS

China Largest Factory Manufacturer sales 2,3-Dihydroxybenzoic acid CAS 303-38-8

Cas:303-38-8

Min.Order:500 Kilogram

FOB Price: $1.0 / 2.0

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

2,3-Dihydroxybenzoicacid

Cas:303-38-8

Min.Order:0

Negotiable

Type:Manufacturers

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-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:0 Metric Ton

Negotiable

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 2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:0 Metric Ton

Negotiable

Type:Other

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be

Manufacturer/High quality 2,3-Dihydroxybenzoic acid 303-38-8

Cas:303-38-8

Min.Order:1 Gram

Negotiable

Type:Other

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

2,3-Dihydroxybenzoicacid

Cas:303-38-8

Min.Order:0

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,

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

Our Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High qu

2,3-Dihydroxybenzoic acid 303-38-8 Pharmaceutical Intermediate

Cas:303-38-8

Min.Order:10 Metric Ton

Negotiable

Type:Other

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,

2,3-Dihydroxybenzoicacid

Cas:303-38-8

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Siwei Development Group Ltd.

Product name: 2,3-Dihydroxy Benzoic Acid CAS No.: 303-38-8 Molecule Formula:C7H5O4 Molecule Weight:153.11 Purity: 99.0% Package: 25kg/drum Description:Reddish crystalline powder Manufacture Standards:Enterprise Standard

High Quality 2,3-Dihydroxy Benzoic Acid

Cas:303-38-8

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Kanbei Chemical Co.,LTD

High quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle

2,3-Dihydroxybenzoic acid.99%

Cas:303-38-8

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

Hangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu

2,3-Dihydroxybenzoic Acid

Cas:303-38-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

303-38-8 CAS NO.303-38-8

Cas:303-38-8

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

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

Benzoicacid, 2,3-dihydroxy-

Cas:303-38-8

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api, intermediat

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:1 Kilogram

FOB Price: $777.0 / 888.0

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

2,3-Dihydroxybenzoic acid

Cas:303-38-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

2,3-dihydroxybenzaldehyde
24677-78-9

2,3-dihydroxybenzaldehyde

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With dihydrogen peroxide In water; acetonitrile at 45℃; for 12h; chemoselective reaction;82%
2,3-dihydroxybenzoicacid ethylester
3943-73-5

2,3-dihydroxybenzoicacid ethylester

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With lithium hydroxide In ethanol; water at 25℃; for 2h;71%
benzoic acid
65-85-0

benzoic acid

A

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

B

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

C

3-Carboxyphenol
99-06-9

3-Carboxyphenol

D

salicylic acid
69-72-7

salicylic acid

E

4-hydroxy-benzoic acid
99-96-7

4-hydroxy-benzoic acid

Conditions
ConditionsYield
With oxygen; iron(II) sulfate In water at 40℃; for 3h; Product distribution; pH 6.8 buffer;A 9%
B 5%
C 14%
D 4%
E 9%
benzoic acid
65-85-0

benzoic acid

A

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

B

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

C

3-Carboxyphenol
99-06-9

3-Carboxyphenol

D

4-hydroxy-benzoic acid
99-96-7

4-hydroxy-benzoic acid

Conditions
ConditionsYield
With oxygen; iron(II) sulfate In water at 40℃; for 3h; Further byproducts given;A 9%
B 5%
C 14%
D 9%
3-formylsalicylic acid
610-04-8

3-formylsalicylic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With sodium hydroxide; dihydrogen peroxide
2-hydroxy-3-iodobenzoic acid
520-79-6

2-hydroxy-3-iodobenzoic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With potassium carbonate beim Schmelzen;
3-methoxysalicylic acid
877-22-5

3-methoxysalicylic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With aluminium trichloride; chlorobenzene
With hydrogenchloride at 140℃; im Rohr;
With aluminium trichloride at 150℃;
With hydrogen bromide at 110 - 120℃;
2,3-dimethoxybenzoic acid
1521-38-6

2,3-dimethoxybenzoic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With hydrogen iodide at 100℃;
Multi-step reaction with 5 steps
1: N,N-dimethyl-formamide; thionyl chloride / dichloromethane / 2 h / 30 - 35 °C
2: ammonium hydroxide / dichloromethane; water / 0.5 h / -5 - 35 °C
3: trichlorophosphate / toluene / 30 - 85 °C
4: triethylamine; aluminum (III) chloride / toluene / 9.5 h / 30 - 75 °C
5: water; hydrogenchloride / toluene / 0.5 h / 15 - 35 °C
View Scheme
2-iodo-3-hydroxybenzaldehyde
62672-58-6

2-iodo-3-hydroxybenzaldehyde

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

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

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
at 100℃;
3-(benzyloxy)-2-hydroxybenzoic acid
23806-63-5

3-(benzyloxy)-2-hydroxybenzoic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With hydrogen bromide at 100 - 110℃;
benzene-1,2-diol
120-80-9

benzene-1,2-diol

A

3,4-Dihydroxybenzoic acid
99-50-3

3,4-Dihydroxybenzoic acid

B

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With ammonium carbonate; water at 130 - 140℃; im geschlossenen Rohr;
benzene-1,2-diol
120-80-9

benzene-1,2-diol

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With potassium dicarbonate; glycerol at 180 - 210℃;
With potassium dicarbonate
With 2,6-dihydroxybenzoic acid decarboxylase from Rhizobium species; potassium hydrogencarbonate at 30℃; for 24h; pH=8.5; aq. phosphate buffer; Enzymatic reaction; regioselective reaction;
3-methoxy-2-hydroxybenzaldehyde
148-53-8

3-methoxy-2-hydroxybenzaldehyde

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
ueber mehrere Stufen;
With potassium hydroxide at 250℃;
carbon dioxide
124-38-9

carbon dioxide

o-methoxyphenyl i-propyl ether
2539-21-1

o-methoxyphenyl i-propyl ether

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
Multistep reaction;
Anguibactin
117308-63-1

Anguibactin

A

histamine
51-45-6

histamine

B

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

C

Dehydrocystine
98135-21-8

Dehydrocystine

Conditions
ConditionsYield
With hydrogenchloride at 100℃; for 24h;
salicylic acid
69-72-7

salicylic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With dihydrogen peroxide; methylene blue In ethanol at 25℃; Quantum yield; Irradiation;
With dihydrogen peroxide; methylene blue In ethanol at 25℃; Irradiation;
Multi-step reaction with 2 steps
1: alcohol; iodine
2: potash / beim Schmelzen
View Scheme
salicylic acid
69-72-7

salicylic acid

A

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

B

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

Conditions
ConditionsYield
With iron(III)-acetylacetonate; dihydrogen peroxide; methylene blue at 25℃; for 4h; Product distribution; Mechanism; Irradiation; other salicylic derivatives, hydroxylation;
With oxygen; potassium oxalate; iron(III) chloride In water at 25℃; Product distribution; Irradiation; role of hydrogen peroxide in dyoxygen induced hydroxylation of title compound; photochemicall and thermal (pH 7.1) hydroxylation;
With dihydrogen peroxide In water at 20℃; for 0.5h; Mechanism; Product distribution; Quantum yield; Irradiation; various pH value and reaction time, HClO4 or K2CO3 presence;
methylene blue

methylene blue

salicylic acid
69-72-7

salicylic acid

A

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

B

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

Conditions
ConditionsYield
With Fe(III)(sal)3(3-); dihydrogen peroxide In water at 25℃; for 1h; Product distribution; Thermodynamic data; Irradiation; other times; presence of O2;
2,2-dimethylbenzo[d][1,3]dioxole-4-carboxylic acid
106296-52-0

2,2-dimethylbenzo[d][1,3]dioxole-4-carboxylic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With sulfuric acid
3-Carboxyphenol
99-06-9

3-Carboxyphenol

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With dihydrogen peroxide In acetonitrile Irradiation;
3-(β-D-glucopyranosyloxy)-2-hydroxybenzoic acid

3-(β-D-glucopyranosyloxy)-2-hydroxybenzoic acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
With β-glucosidase for 168h; Ambient temperature; enzymatic hydrolysis;

A

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

B

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

Conditions
ConditionsYield
With dihydrogen peroxide; potassium carbonate In water at 20℃; for 0.5h; Mechanism; Product distribution; Quantum yield; Irradiation; various pH value and reaction time;
salicylic acid
69-72-7

salicylic acid

A

4-hydroxysalicylic acid
89-86-1

4-hydroxysalicylic acid

B

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

C

2,5-dihydroxybenzoic acid.
490-79-9

2,5-dihydroxybenzoic acid.

D

2,6-Dihydroxybenzoic acid
303-07-1

2,6-Dihydroxybenzoic acid

Conditions
ConditionsYield
With dihydrogen peroxide; iron(II) sulfate In water at 37℃; for 0.0833333h; hydroxylation; Further byproducts given. Title compound not separated from byproducts;
salicylic acid
69-72-7

salicylic acid

A

formic acid
64-18-6

formic acid

B

malic acid
617-48-1

malic acid

C

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

D

oxalic acid
144-62-7

oxalic acid

Conditions
ConditionsYield
With dihydrogen peroxide at 23℃; for 4h; pH=6.2; Oxidation; UV-irradiation; Further byproducts given;
salicylic acid
69-72-7

salicylic acid

A

cis,cis-Muconic acid
1119-72-8

cis,cis-Muconic acid

B

malonic acid
141-82-2

malonic acid

C

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

D

hydroquinone
123-31-9

hydroquinone

Conditions
ConditionsYield
With dihydrogen peroxide at 23℃; for 2.5h; pH=6.2; Kinetics; Oxidation; UV-irradiation;
sulfuric acid
7664-93-9

sulfuric acid

3-(2,5-dimethoxy-tetrahydro-[2]furyl)-3-oxo-propionic acid methyl ester
99974-86-4

3-(2,5-dimethoxy-tetrahydro-[2]furyl)-3-oxo-propionic acid methyl ester

A

methyl-2,3-dihydroxybenzoate
2411-83-8

methyl-2,3-dihydroxybenzoate

B

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

carbon dioxide
124-38-9

carbon dioxide

benzene-1,2-diol
120-80-9

benzene-1,2-diol

Na2CO3

Na2CO3

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
at 160℃;
benzene-1,2-diol
120-80-9

benzene-1,2-diol

glycerol
56-81-5

glycerol

potassium dicarbonate

potassium dicarbonate

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
at 180 - 210℃;
at 180℃;
3-methoxy-2-hydroxybenzaldehyde
148-53-8

3-methoxy-2-hydroxybenzaldehyde

potassium hydroxide

potassium hydroxide

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
at 250℃;
water
7732-18-5

water

benzene-1,2-diol
120-80-9

benzene-1,2-diol

ammonium carbonate

ammonium carbonate

A

3,4-Dihydroxybenzoic acid
99-50-3

3,4-Dihydroxybenzoic acid

B

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

Conditions
ConditionsYield
at 140℃;
ethanol
64-17-5

ethanol

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

2,3-dihydroxybenzoicacid ethylester
3943-73-5

2,3-dihydroxybenzoicacid ethylester

Conditions
ConditionsYield
sulfuric acid for 24h; Reflux;100%
With sulfuric acid
With sulfuric acid
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

2-hydroxy-3-(toluene-4-sulfonyloxy)-benzoic acid
866528-82-7

2-hydroxy-3-(toluene-4-sulfonyloxy)-benzoic acid

Conditions
ConditionsYield
With sodium hydroxide In water; acetone at 40℃;100%
methanol
67-56-1

methanol

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

methyl-2,3-dihydroxybenzoate
2411-83-8

methyl-2,3-dihydroxybenzoate

Conditions
ConditionsYield
With sulfuric acid for 6h; Reflux;100%
With sulfuric acid at 0℃; for 12h; Heating / reflux;99%
With thionyl chloride at 20℃;99%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

2,3-dihydroxy-5-bromobenzoic acid
72517-15-8

2,3-dihydroxy-5-bromobenzoic acid

Conditions
ConditionsYield
With bromine; acetic acid at 20℃; for 24h;99%
With bromine In acetic acid at 20℃; for 16h; Inert atmosphere; regioselective reaction;99%
With bromine In acetic acid at 20℃;88%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

acetyl chloride
75-36-5

acetyl chloride

methyl-2,3-dihydroxybenzoate
2411-83-8

methyl-2,3-dihydroxybenzoate

Conditions
ConditionsYield
With sodium hydrogencarbonate In hydrogenchloride; methanol99%
With sodium hydrogencarbonate In hydrogenchloride; methanol99%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

acetic anhydride
108-24-7

acetic anhydride

2,3-diacetoxybenzoic acid
486-79-3

2,3-diacetoxybenzoic acid

Conditions
ConditionsYield
sulfuric acid In diethyl ether for 12h;98%
With sulfuric acid In diethyl ether at 20℃; for 12h; Esterification;91%
With sulfuric acid for 0.416667h; Heating;74%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

benzyl bromide
100-39-0

benzyl bromide

benzyl 2,3-bis(benzyloxy)benzoate
95922-26-2

benzyl 2,3-bis(benzyloxy)benzoate

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide for 5h; Ambient temperature;98%
With potassium carbonate In acetone for 24h; Inert atmosphere; Reflux;94%
With potassium carbonate In acetone for 24h; Reflux; Inert atmosphere;81%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

methyl-2,3-dihydroxybenzoate
2411-83-8

methyl-2,3-dihydroxybenzoate

Conditions
ConditionsYield
With sulfuric acid In methanol98%
With sulfuric acid In methanol
With sulfuric acid In methanol; water
Multi-step reaction with 2 steps
1: thionyl chloride / 78 °C / Inert atmosphere
2: triethylamine / 16 h / 0 - 25 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1: thionyl chloride / Reflux
2: triethylamine / chloroform / 18 h / Reflux
View Scheme
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

chlorure de 2,3-dioxosulfinylbenzoyle
70656-95-0

chlorure de 2,3-dioxosulfinylbenzoyle

Conditions
ConditionsYield
With thionyl chloride; urea at 40℃; for 3h; Cyclization;97%
With thionyl chloride; urea at 40℃; for 2h; Yield given;
With thionyl chloride for 8h; Heating;
methanol
67-56-1

methanol

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

methyl 2,3-dihydroxymethylbenzoate

methyl 2,3-dihydroxymethylbenzoate

Conditions
ConditionsYield
With sulfuric acid for 18h; Reflux;97%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

benzyl chloride
100-44-7

benzyl chloride

benzyl 2,3-bis(benzyloxy)benzoate
95922-26-2

benzyl 2,3-bis(benzyloxy)benzoate

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide Reflux; Inert atmosphere;96%
With potassium carbonate In N,N-dimethyl-formamide at 90℃;91%
1‐(1,3,4,5‐tetrahydro‐2H‐pyrido[4,3‐b]indol‐2‐yl)ethan‐1‐one

1‐(1,3,4,5‐tetrahydro‐2H‐pyrido[4,3‐b]indol‐2‐yl)ethan‐1‐one

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

(6a,11b)‐13‐acetyl‐3,4‐dihydroxy‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

(6a,11b)‐13‐acetyl‐3,4‐dihydroxy‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

Conditions
ConditionsYield
With tert.-butylhydroperoxide; methanesulfonic acid; iron(II) phthalocyanine; acetic acid In water; acetonitrile at 5℃; for 0.0833333h;96%
1‐(1,3,4,5‐tetrahydro‐2H‐pyrido[4,3‐b]indol‐2‐yl)ethan‐1‐one

1‐(1,3,4,5‐tetrahydro‐2H‐pyrido[4,3‐b]indol‐2‐yl)ethan‐1‐one

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

C20H18N2O5

C20H18N2O5

Conditions
ConditionsYield
With tert.-butylhydroperoxide; methanesulfonic acid; iron(II) phthalocyanine; acetic acid In water; acetonitrile at 5℃; for 0.0833333h;96%
1-hydroxy-pyrrolidine-2,5-dione
6066-82-6

1-hydroxy-pyrrolidine-2,5-dione

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

succinimido 2,3-dihydroxybenzoate.
86748-78-9

succinimido 2,3-dihydroxybenzoate.

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In 1,4-dioxane for 16h;95%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

benzyl bromide
100-39-0

benzyl bromide

2,3-dibenzyloxybenzoic acid
74272-78-9

2,3-dibenzyloxybenzoic acid

Conditions
ConditionsYield
Stage #1: 2,3-Dihydroxybenzoic acid With sulfuric acid In methanol
Stage #2: benzyl bromide With potassium carbonate In methanol; chloroform
Stage #3: With barium(II) hydroxide In tetrahydrofuran; water at 50℃;
95%
Stage #1: 2,3-Dihydroxybenzoic acid; benzyl bromide With potassium carbonate In acetone for 24h; Reflux;
Stage #2: With lithium hydroxide In methanol; water for 3h; Reflux;
Stage #3: With hydrogenchloride In methanol; water at 0℃;
91%
With potassium hydroxide In dimethyl sulfoxide for 4h;89%
morpholine
110-91-8

morpholine

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

lead(II) thiocyanate
592-87-0

lead(II) thiocyanate

8-hydroxy-2-morpholin-4-yl-4H-1,3-benzoxazin-4-one
1257411-46-3

8-hydroxy-2-morpholin-4-yl-4H-1,3-benzoxazin-4-one

Conditions
ConditionsYield
Stage #1: 2,3-Dihydroxybenzoic acid; lead(II) thiocyanate With dibromotriphenylphosphorane In tetrahydrofuran; dichloromethane at 0 - 20℃; for 4h; Inert atmosphere; Reflux;
Stage #2: morpholine In 1,4-dioxane for 4h; Reflux;
95%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

isopropyl bromide
75-26-3

isopropyl bromide

2,3-diisopropyloxybenzoic acid
85686-13-1

2,3-diisopropyloxybenzoic acid

Conditions
ConditionsYield
Stage #1: 2,3-Dihydroxybenzoic acid; isopropyl bromide With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 50℃;
Stage #2: With barium(II) hydroxide In tetrahydrofuran; water at 50℃;
95%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

benzoic acid anhydride
93-97-0

benzoic acid anhydride

2,3-Dibenzyloxybenzoic acid
102184-11-2

2,3-Dibenzyloxybenzoic acid

Conditions
ConditionsYield
With pyridine In dichloromethane at 20℃; for 16h;93%
N,N'-diethyl-2-thiobarbituric acid
5217-47-0

N,N'-diethyl-2-thiobarbituric acid

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

C30H28N4O12S2

C30H28N4O12S2

Conditions
ConditionsYield
With sodium acetate; potassium hexacyanoferrate(III) In water at 20℃; for 0.166667h;92%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

p-methoxybenzyl chloride
824-94-2

p-methoxybenzyl chloride

4-methoxybenzyl 2,3-bis((4-methoxybenzyl)oxy)benzoate
1154500-34-1

4-methoxybenzyl 2,3-bis((4-methoxybenzyl)oxy)benzoate

Conditions
ConditionsYield
With potassium carbonate; potassium iodide In acetone for 72h; Inert atmosphere; Reflux;92%
Stage #1: 2,3-Dihydroxybenzoic acid With tetra-(n-butyl)ammonium iodide; potassium carbonate In acetone at 25℃; for 1h;
Stage #2: p-methoxybenzyl chloride In acetone Reflux;
70%
With potassium carbonate; sodium iodide In N,N-dimethyl-formamide at 70℃; for 2h;52%
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 2h; Inert atmosphere;52%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

8‐fluoro‐2‐tosyl‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

8‐fluoro‐2‐tosyl‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

(6a)‐10‐fluoro‐3,4‐dihydroxy‐13‐tosyl‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

(6a)‐10‐fluoro‐3,4‐dihydroxy‐13‐tosyl‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

Conditions
ConditionsYield
With tert.-butylhydroperoxide; methanesulfonic acid; iron(II) phthalocyanine; acetic acid In water; acetonitrile at 5℃; for 0.5h;91%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

8‐chloro‐2‐(phenylsulfonyl)‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

8‐chloro‐2‐(phenylsulfonyl)‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

(6a,11b)‐10‐chloro‐3,4‐dihydroxy‐13‐(phenylsulfonyl)‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

(6a,11b)‐10‐chloro‐3,4‐dihydroxy‐13‐(phenylsulfonyl)‐5H,7H‐6a,11b‐(ethanoiminomethano)isochromeno[3,4‐b]indol‐5‐one

Conditions
ConditionsYield
With tert.-butylhydroperoxide; methanesulfonic acid; iron(II) phthalocyanine; acetic acid In water; acetonitrile at 5℃; for 0.166667h;91%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

8‐chloro‐2‐(phenylsulfonyl)‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

8‐chloro‐2‐(phenylsulfonyl)‐2,3,4,5‐tetrahydro‐1H‐pyrido[4,3‐b]indole

C24H19ClN2O6S

C24H19ClN2O6S

Conditions
ConditionsYield
With tert.-butylhydroperoxide; methanesulfonic acid; iron(II) phthalocyanine; acetic acid In water; acetonitrile at 5℃; for 0.166667h;91%
4-hydroxy[1]benzopyran-2-one
1076-38-6

4-hydroxy[1]benzopyran-2-one

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

3,4-dihydroxy-6-oxo-6H-benzofuro[3,2-c][1]benzopyron-5-carboxylic acid

3,4-dihydroxy-6-oxo-6H-benzofuro[3,2-c][1]benzopyron-5-carboxylic acid

Conditions
ConditionsYield
With sodium acetate; potassium hexacyanoferrate(III) In water for 1h; Michael addition reaction;90%
N-BOC-1,2-diaminoethane
57260-73-8

N-BOC-1,2-diaminoethane

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

N-(N'-tert-butyloxycarbonylethanediamino)-2,3-bis(benzyloxy)benzamide
197636-95-6

N-(N'-tert-butyloxycarbonylethanediamino)-2,3-bis(benzyloxy)benzamide

Conditions
ConditionsYield
Stage #1: 2,3-Dihydroxybenzoic acid With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 25℃; for 0.25h;
Stage #2: N-BOC-1,2-diaminoethane In N,N-dimethyl-formamide at 25℃; for 0.5h;
90%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

4-(1,3-benzothiazol-2-yl)benzohydrazide

4-(1,3-benzothiazol-2-yl)benzohydrazide

3-(5-(4-(benzo[d]thiazol-2-yl)phenyl)-1,3,4-oxadiazol-2-yl)benzene-1,2-diol

3-(5-(4-(benzo[d]thiazol-2-yl)phenyl)-1,3,4-oxadiazol-2-yl)benzene-1,2-diol

Conditions
ConditionsYield
With trichlorophosphate at 120℃;89.3%
pentaphenylantimony
2170-05-0

pentaphenylantimony

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

[Ph4Sb]+[Ph4Sb(O2C6H3CO2H)]−

[Ph4Sb]+[Ph4Sb(O2C6H3CO2H)]−

Conditions
ConditionsYield
In toluene for 1h; Sealed tube; Heating;89%
tetramethylammonium hydroxide pentahydrate

tetramethylammonium hydroxide pentahydrate

tungsten(VI) oxide monohydrate

tungsten(VI) oxide monohydrate

2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

endo,endo-(NMe4)2[WO2(2,3-dihydroxybenzoic acid(2-))2]*2H2O

endo,endo-(NMe4)2[WO2(2,3-dihydroxybenzoic acid(2-))2]*2H2O

Conditions
ConditionsYield
In water tungstic acid, 2,3-dihydroxybenzoic acid, Me4NOH refluxed overnight in H2O; hot filtered; evapd. to dryness; washed with hot THF, CH2Cl2, Et2O; vac.dried at 70°C;87%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

nicotin
54-11-5

nicotin

nicotine 2,3-dihydroxybenzoate

nicotine 2,3-dihydroxybenzoate

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 1h;86%
2,3-Dihydroxybenzoic acid
303-38-8

2,3-Dihydroxybenzoic acid

4-(6-chlorobenzo[d]thiazol-2-yl)benzo hydrazide

4-(6-chlorobenzo[d]thiazol-2-yl)benzo hydrazide

3-(5-(4-(6-chlorobenzo[d]thiazol-2-yl)phenyl)-1,3,4-oxadiazol-2-yl)benzene-1,2-diol

3-(5-(4-(6-chlorobenzo[d]thiazol-2-yl)phenyl)-1,3,4-oxadiazol-2-yl)benzene-1,2-diol

Conditions
ConditionsYield
With trichlorophosphate Reflux;86%

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