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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

3,4-Diaminobenzoic acid Manufacturer/High quality/Best price/In stock

Cas:619-05-6

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-Diaminobenzoic Acid with high purity

Cas:619-05-6

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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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 3,4-Diaminobenzoic Acid

Cas:619-05-6

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 3,4-DIAMINOBENZOIC ACID 619-05-6 Manufacturer

Cas:619-05-6

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu

lower price High quality 3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:1 Kilogram

FOB Price: $1.0

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

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--619-05-6--3,4-Diaminobenzoic acid factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable business

TIANFUCHEM--619-05-6--3,4-Diaminobenzoic acid factory price

Cas:619-05-6

Min.Order:1 Metric Ton

FOB Price: $2000.0

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

3,4-Diaminobenzoic acid 619-05-6

Cas:619-05-6

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

GMP factory supply CAS 619-05-6 with fast shipping

Cas:619-05-6

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

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, 3,4-diamino- 619-05-6

Cas:619-05-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

3,4-Diaminobenzoic acid CAS:619-05-6 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 in

3,4-Diaminobenzoic acid CAS:619-05-6

Cas:619-05-6

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

3,4-Diaminobenzoic acid

Cas:619-05-6

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.:619-05-6

Cas:619-05-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:1 Kilogram

FOB Price: $40.0 / 60.0

Type:Lab/Research institutions

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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

3,4-Diaminobenzoic Acid

Cas:619-05-6

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

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:0 Metric Ton

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

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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-Diaminobenzoic Acid

Cas:619-05-6

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:white crystal powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:Used as Pharmaceutical Intermediates Tr

Benzoicacid, 3,4-diamino-

Cas:619-05-6

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: 3,4-Diaminobenzoic Acid CAS No.:619-05-6 Molecule Formula:C7H8N2O2 Molecule Weight:152.15 Purity: 98% Package: 25kg/drum Description:Light beige crystalline powder Manufacture Standards:Enterprise Standard TESTING I

High Quality 3,4-Diaminobenzoic Acid in stock

Cas:619-05-6

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,

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:1 Kilogram

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 Offer3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:0

Negotiable

Type:Trading Company

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Shanghai Minstar Chemical Co., Ltd

3,4-Diaminobenzoic acid Chemical Properties Melting point 208-210 °C (dec.) (lit.) Boiling point 274.61°C (rough estimate) density 1.2804 (rough estimate) refractive index 1.5200 (estimate) pka 5.02±0.10(Predicted) f

3,4-Diaminobenzoic Acid

Cas:619-05-6

Min.Order:1 Gram

FOB Price: $66.0

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

3,4-Diaminobenzoic Acid

Cas:619-05-6

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

BEST PRICE/3,4-Diaminobenzoic acid CAS NO.619-05-6

Cas:619-05-6

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Golden Pharma Co., Limited

GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

3,4-Diaminobenzoic Acid cas no. 619-05-6 98%

Cas:619-05-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

3,4-Diaminobenzoic acid

Cas:619-05-6

Min.Order:0

Negotiable

Type:Other

inquiry

Synthetic route

3,4-dinitrobenzoic acid
528-45-0

3,4-dinitrobenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
With sodium tetrahydroborate In water at 40℃; for 2h; chemoselective reaction;95%
With hydrazine hydrate In ethanol at 20℃; for 0.25h; Sonication;94%
With hydrazine hydrate In ethanol at 70℃; for 0.166667h;94%
With hydrazine hydrate In ethanol at 70℃; for 0.266667h;89%
4-amino-3-nitrobenzoic acid
1588-83-6

4-amino-3-nitrobenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
With hydrogenchloride; tin73.5%
With ethanol; nickel Hydrogenation;
With hydrogenchloride; tin
3-amino-4-nitrobenzoic acid
6968-22-5

3-amino-4-nitrobenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
With hydrogenchloride; tin
With hydrogenchloride; tin(ll) chloride
4-amino-3-(4-sulfamoyl-phenylazo)-benzoic acid

4-amino-3-(4-sulfamoyl-phenylazo)-benzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
With hydrogenchloride; tin(ll) chloride
furan-2,3,5(4H)-trione pyridine (1:1)

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

4-amino-3-nitrobenzoic acid
1588-83-6

4-amino-3-nitrobenzoic acid

aluminium

aluminium

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

hydrogenchloride
7647-01-0

hydrogenchloride

4-amino-3-nitrobenzoic acid
1588-83-6

4-amino-3-nitrobenzoic acid

tin

tin

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

hydrogenchloride
7647-01-0

hydrogenchloride

3-amino-4-nitrobenzoic acid
6968-22-5

3-amino-4-nitrobenzoic acid

tin

tin

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

3-nitro-4-acetamidobenzoic acid
1539-06-6

3-nitro-4-acetamidobenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aqueous hydrochloric acid
2: tin; hydrochloric acid
View Scheme
Multi-step reaction with 2 steps
1: alcohol; hydrochloric acid
2: aluminium; diluted NaOH-solution
View Scheme
4-nitro-3-(N'-nitro-ureido)-benzoic acid
100949-13-1

4-nitro-3-(N'-nitro-ureido)-benzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: water
2: tin; hydrochloric acid
View Scheme
4-chloro-3-nitrobenzoate
96-99-1

4-chloro-3-nitrobenzoate

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aqueous NH3 / 170 °C
2: Raney nickel; ethanol / Hydrogenation
View Scheme
4-methoxy-3-nitrobenzoic acid
89-41-8

4-methoxy-3-nitrobenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ammonia / 140 - 170 °C / im Druckrohr
2: tin; hydrochloric acid
View Scheme
3-methoxy-4-hydroxybenzoic acid
121-34-6

3-methoxy-4-hydroxybenzoic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Conditions
ConditionsYield
With ammonia; metal catalyst
1,2-di(4-methylphenyl)-1,2-ethanedione
3457-48-5

1,2-di(4-methylphenyl)-1,2-ethanedione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3-bis(4-methylphenyl)-6-quinoxalinecarboxylic acid
90833-49-1

2,3-bis(4-methylphenyl)-6-quinoxalinecarboxylic acid

Conditions
ConditionsYield
With sodium acetate; acetic acid at 118℃; for 4h;100%
In hydrogenchloride for 1h; heating on boiling water bath;42.3%
1,2-bis(4-fluorophenyl)ethane-1,2-dione
579-39-5

1,2-bis(4-fluorophenyl)ethane-1,2-dione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3-bis(4-fluorophenyl)quinoxaline-6-carboxylic acid
355397-64-7

2,3-bis(4-fluorophenyl)quinoxaline-6-carboxylic acid

Conditions
ConditionsYield
With sodium acetate; acetic acid at 118℃; for 4h;100%
H6P2W18O62 In acetic acid at 20℃; for 0.0833333h;97%
In methanol; chloroform at 20℃;95%
N-(9H-fluoren-2-ylmethoxycarbonyloxy)succinimide
82911-69-1

N-(9H-fluoren-2-ylmethoxycarbonyloxy)succinimide

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

3-N-[(9H-fluoren-9-yl)methoxycarbonyl]-amino-4-aminobenzoic acid
1071446-05-3

3-N-[(9H-fluoren-9-yl)methoxycarbonyl]-amino-4-aminobenzoic acid

Conditions
ConditionsYield
With sodium hydrogencarbonate In acetonitrile at 20℃; for 16.0833h;100%
With sodium hydrogencarbonate In acetonitrile at 20℃; for 16.0833h;100%
With sodium hydrogencarbonate In acetonitrile for 22h;94%
2,5-dihydroxy-1,4-benzoquinone
615-94-1

2,5-dihydroxy-1,4-benzoquinone

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

7,8-dihydroxyphenazine-2-carboxylic acid
1055878-48-2

7,8-dihydroxyphenazine-2-carboxylic acid

Conditions
ConditionsYield
In water at 95℃; for 15h;100%
In ethanol for 24h; Reflux;85%
With acetic acid In ethanol at 20℃; for 5h;65%
formic acid
64-18-6

formic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

1H-benzimidazole-6-carboxylic acid
15788-16-6

1H-benzimidazole-6-carboxylic acid

Conditions
ConditionsYield
for 4h; Reflux;99.06%
at 110℃; for 4h;89%
With potassium tert-butylate at 110℃; for 4h;88%
Stage #1: formic acid; 3,4-diaminobenzoic acid With hydrogenchloride In water at 20℃; for 24h; Cooling;
Stage #2: With ammonia In water pH=2 - 3;
54%
p-benzyloxybenzaldehyde
4397-53-9

p-benzyloxybenzaldehyde

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2-(4-(benzyloxy)phenyl)-1H-benzo[d]imidazole-5-carboxylic acid
174422-18-5

2-(4-(benzyloxy)phenyl)-1H-benzo[d]imidazole-5-carboxylic acid

Conditions
ConditionsYield
With sodium metabisulfite In N,N-dimethyl-formamide at 80℃; for 6h;99%
With hydrogenchloride; sodium sulfide; copper diacetate 1.) MeOH, heating, 2.) EtOH; Yield given. Multistep reaction;
(3Z)-1-ethyl-3-[(ethylcarbamoylamino)-methylsulfanyl-methylene]urea
797047-27-9

(3Z)-1-ethyl-3-[(ethylcarbamoylamino)-methylsulfanyl-methylene]urea

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

C11H12N4O3

C11H12N4O3

Conditions
ConditionsYield
With sulfuric acid; sodium acetate In 1,4-dioxane for 1h; pH=3.5; Heating;99%
trifluoroacetic acid
76-05-1

trifluoroacetic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2-(trifluoromethyl)-1H-benzo[d]imidazole-5-carboxylic acid
82791-93-3

2-(trifluoromethyl)-1H-benzo[d]imidazole-5-carboxylic acid

Conditions
ConditionsYield
at 70℃; for 16h;99%
With hydrogenchloride In water for 24h; Inert atmosphere; Reflux;94%
With hydrogenchloride; formic acid In water Reflux;
benzil
134-81-6

benzil

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3‐diphenylquinoxaline‐6‐carboxylic acid
32387-96-5

2,3‐diphenylquinoxaline‐6‐carboxylic acid

Conditions
ConditionsYield
In hydrogenchloride for 1h; heating on boiling water bath;98.5%
H6P2W18O62 In acetic acid at 20℃; for 0.166667h;97%
With sodium acetate; acetic acid at 118℃; for 4h;97%
methanol
67-56-1

methanol

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

Methyl 3,4-diaminobenzoate
36692-49-6

Methyl 3,4-diaminobenzoate

Conditions
ConditionsYield
With sulfuric acid at 90℃; for 12h; Temperature;98.1%
With thionyl chloride for 4h; Inert atmosphere;95%
With thionyl chloride for 11h; Reflux;94%
4,4'-dinitrobenzil
6067-45-4

4,4'-dinitrobenzil

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3-bis(4-nitrophenyl)quinoxaline-6-carboxylic acid
514197-15-0

2,3-bis(4-nitrophenyl)quinoxaline-6-carboxylic acid

Conditions
ConditionsYield
With acetic acid for 12h; Heating;98%
With nitrogen In acetic acid98%
3,6-dibromo-phenanthrene-9,10-dione
53348-05-3

3,6-dibromo-phenanthrene-9,10-dione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,7-dibromodibenzo[a,c]phenazine-11-carboxylic acid
1616777-39-9

2,7-dibromodibenzo[a,c]phenazine-11-carboxylic acid

Conditions
ConditionsYield
With acetic acid In ethanol for 2h; Reflux;98%
hexaketocyclohexane
527-31-1

hexaketocyclohexane

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

5,6,11,12,17,18-hexaazatrinaphthylene-2,8,14-tricarboxylic acid
872140-77-7

5,6,11,12,17,18-hexaazatrinaphthylene-2,8,14-tricarboxylic acid

Conditions
ConditionsYield
With acetic acid for 5h; Reflux;98%
1,2-bis(4-methoxyphenyl)-1,2-ethanedione
1226-42-2

1,2-bis(4-methoxyphenyl)-1,2-ethanedione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3-bis(4-methoxyphenyl)-quinoxaline-6-carboxylic acid
40622-01-3

2,3-bis(4-methoxyphenyl)-quinoxaline-6-carboxylic acid

Conditions
ConditionsYield
In hydrogenchloride for 1h; heating on boiling water bath;97.8%
In deoxygenated acetic acid97%
With acetic acid In sodium hydroxide44%
dimethylglyoxal
431-03-8

dimethylglyoxal

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,3-dimethyl-6-quinoxalinecarboxylic acid
17635-26-6

2,3-dimethyl-6-quinoxalinecarboxylic acid

Conditions
ConditionsYield
In neat (no solvent) at 24.84℃;97%
Heating;87%
In hydrogenchloride for 1h; heating on boiling water bath;81.6%
5-fluoro-2-hydroxybenzaldehyde
347-54-6

5-fluoro-2-hydroxybenzaldehyde

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2‐(5‐fluoro‐2‐hydroxyphenyl)‐1H‐benzo[d]imidazole‐5‐carboxylic acid

2‐(5‐fluoro‐2‐hydroxyphenyl)‐1H‐benzo[d]imidazole‐5‐carboxylic acid

Conditions
ConditionsYield
With sodium metabisulfite; choline chloride In glycerol at 50℃; for 0.5h;97%
With sodium metabisulfite In glycerol at 50℃; for 0.5h;97%
N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

1H-benzimidazole-6-carboxylic acid
15788-16-6

1H-benzimidazole-6-carboxylic acid

Conditions
ConditionsYield
With carbon dioxide In water at 150℃; under 37503.8 Torr; for 5h;96.1%
salicylaldehyde
90-02-8

salicylaldehyde

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

N,N′-bis(salicylidene)-3-carboxyl-o-phenylenediamine
87578-89-0

N,N′-bis(salicylidene)-3-carboxyl-o-phenylenediamine

Conditions
ConditionsYield
In methanol for 3h; Reflux;96%
In methanol for 3h; Reflux;96%
In methanol at 20℃; for 6h; Inert atmosphere;85%
malonic acid
141-82-2

malonic acid

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2-methyl-1H-benzoimidazole-5-carboxylic acid
709-19-3

2-methyl-1H-benzoimidazole-5-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride for 2.5h; Heating;95%
benzaldehyde
100-52-7

benzaldehyde

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2-phenyl-1H-1,3-benzimidazole-5-carboxylic acid
66630-70-4

2-phenyl-1H-1,3-benzimidazole-5-carboxylic acid

Conditions
ConditionsYield
With ammonium acetate In ethanol at 75℃; for 5.5h;95%
With air In ethanol at 20℃; for 2.25h;94%
With vanadium(IV)-salen complex nanoparticles immobilized onto silica In ethanol at 20℃; for 1h;94%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

N,N'-di-(tert-butoxycarbonyl)-3,4-diaminobenzoic acid
66636-17-7

N,N'-di-(tert-butoxycarbonyl)-3,4-diaminobenzoic acid

Conditions
ConditionsYield
With amberlyst-15 In ethanol at 20℃; for 4.5h; chemoselective reaction;95%
With guanidine hydrochloride In ethanol at 35 - 40℃; for 1.83333h;93%
With potassium hydroxide In water; tert-butyl alcohol at 20℃; for 48h;85%
3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

benzo[c][1,2,5]selenadiazole-5-carboxylic acid
140669-75-6

benzo[c][1,2,5]selenadiazole-5-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride; selenium(IV) oxide In water at 80℃; for 2h;95%
With hydrogenchloride; selenium(IV) oxide In water for 2h;95%
With hydrogenchloride; selenium(IV) oxide In water at 20℃; for 2h;93%
2,7-dibromobenzo[1,2-b:4,3-b’]dithiophene-4,5-dione
1258459-51-6

2,7-dibromobenzo[1,2-b:4,3-b’]dithiophene-4,5-dione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2,5-dibromodithieno[2,3-a:3',2'-c]phenazine-9-carboxylic acid
1616777-44-6

2,5-dibromodithieno[2,3-a:3',2'-c]phenazine-9-carboxylic acid

Conditions
ConditionsYield
With acetic acid In ethanol for 2h; Reflux;95%
3,5-di-tert-butyl-2-hydroxybenzaldehyde
37942-07-7

3,5-di-tert-butyl-2-hydroxybenzaldehyde

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

N,N'-bis(3,5-di-tert-butylsalicylidene)-1-carboxy-3,4-phenylene-diamine

N,N'-bis(3,5-di-tert-butylsalicylidene)-1-carboxy-3,4-phenylene-diamine

Conditions
ConditionsYield
Stage #1: 3,5-di-tert-butyl-2-hydroxybenzaldehyde; 3,4-diaminobenzoic acid In tetrahydrofuran for 0.333333h;
Stage #2: With zinc(II) chloride In tetrahydrofuran for 0.75h; Reflux;
95%
With sulfuric acid In ethanol at 78℃; for 24h;48.2%
With sulfuric acid In ethanol at 78℃; for 24h;48.2%
1,10-phenanthroline-5,6-dione
27318-90-7

1,10-phenanthroline-5,6-dione

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

4,5,9,14-tetraaza-benzo[b]triphenylene-11-carboxylic acid
259796-23-1

4,5,9,14-tetraaza-benzo[b]triphenylene-11-carboxylic acid

Conditions
ConditionsYield
In ethanol for 0.166667h; Condensation; Heating;94%
With sulfated titania (TiO2-SO42-) In ethanol at 20℃; for 0.5h;92.8%
With toluene-4-sulfonic acid In neat (no solvent) for 2.5h; Milling; Green chemistry;91%
indan-1,2,3-trione hydrate
485-47-2

indan-1,2,3-trione hydrate

(methyloxycarbonylmethyl)triphenylphosphonium bromide
1779-58-4

(methyloxycarbonylmethyl)triphenylphosphonium bromide

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

methyl (8-carboxylindeno[1,2-b]quinoxalin-11-ylidene)acetate

methyl (8-carboxylindeno[1,2-b]quinoxalin-11-ylidene)acetate

Conditions
ConditionsYield
With sodium acetate In acetonitrile at 110℃; for 1h;94%
1,1,1-trimethoxybutane
43083-12-1

1,1,1-trimethoxybutane

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

2-propyl-1H-benzo[d]imidazole-6-carboxylic acid
141838-50-8

2-propyl-1H-benzo[d]imidazole-6-carboxylic acid

Conditions
ConditionsYield
Stage #1: 1,1,1-trimethoxybutane; 3,4-diaminobenzoic acid With hydrogenchloride In water at 20℃;
Stage #2: With sodium hydrogencarbonate In water pH=8;
94%
Cyclohexyl isocyanide
931-53-3

Cyclohexyl isocyanide

cyclohexanone
108-94-1

cyclohexanone

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

4a'-(cyclohexylcarbamoyl)-1',2',3',4',4a',5',10',11a'-octahydrospiro[cyclohexane-1,11'-dibenzo[b,e][1,4]diazepine]-7'-carboxylic acid
1039656-72-8

4a'-(cyclohexylcarbamoyl)-1',2',3',4',4a',5',10',11a'-octahydrospiro[cyclohexane-1,11'-dibenzo[b,e][1,4]diazepine]-7'-carboxylic acid

Conditions
ConditionsYield
With wool supported Fe3O4 nanoparticles In methanol at 20℃; for 18h; Reagent/catalyst;94%
Stage #1: cyclohexanone; 3,4-diaminobenzoic acid With Fe3O4/SiO2 In ethanol at 20℃; for 1h;
Stage #2: Cyclohexyl isocyanide In ethanol at 20℃; for 4h; regioselective reaction;
90%
methanol
67-56-1

methanol

3,4-diaminobenzoic acid
619-05-6

3,4-diaminobenzoic acid

methyl 3,4-diaminobenzoate dihydrochloride

methyl 3,4-diaminobenzoate dihydrochloride

Conditions
ConditionsYield
Stage #1: methanol; 3,4-diaminobenzoic acid With sulfuryl dichloride at 0℃; for 5h; Reflux;
Stage #2: With hydrogenchloride In water
94%
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