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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

Sulfapyridine Manufacturer/High quality/Best price/In stock

Cas:144-83-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C

Sulfapyridine manufacturer with low price

Cas:144-83-2

Min.Order:1 Gram

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 Sulfapyridine

Cas:144-83-2

Min.Order:1

Negotiable

Type:Other

inquiry

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

Large Stock 99.0% Sulfapyridine 144-83-2 Producer

Cas:144-83-2

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

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

Sulfapyridine

Cas:144-83-2

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Sulfapyridine Basic information Product Name: Sulfapyridine Synonyms: 2-(p-Aminobenzenesulfonamido)pyridine;2-(p-Aminobenzenesulphonamido)pyridine;2-Sulfanilamidopy

Sulfapyridine

Cas:144-83-2

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

Sulfapyridine

Cas:144-83-2

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 144-83-2 with best quality

Cas:144-83-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

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

Benzenesulfonamide,4-amino-N-2-pyridinyl- 144-83-2

Cas:144-83-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Sulfapyridine CAS:144-83-2 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 intermediates

Sulfapyridine CAS:144-83-2

Cas:144-83-2

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

Sulfapyridine

Cas:144-83-2

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 R&amp

Benzenesulfonamide,4-amino-N-2-pyridinyl-/ LIDE PHARMA- Factory supply / Best price

Cas:144-83-2

Min.Order:0

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.:144-83-2

Cas:144-83-2

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

Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

FOB Price: $10.0 / 20.0

Type:Lab/Research institutions

inquiry

Guangdong Juda Chemical Industrial Co.,Limited

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 etc. 3) OEM/ODM Available; 4) Reasonable & Compet

Tech API CAS 144-83-2 Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

FOB Price: $1.0 / 100000.0

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

CAS144-83-2 Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

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

Sulfapyridine

Cas:144-83-2

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

Sulfapyridine

Cas:144-83-2

Min.Order:0

Negotiable

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 Sulfapyridine

Cas:144-83-2

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

GMPAppearance:off-white crystalline powder Storage:2-8°C Package:as client requirement Application:Used in treatment of dermatitis herpetiformis; antibacterial. Transportation:Express, Air ,Sea Port:Any port of China

Sulphapyridine

Cas:144-83-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

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:25kg/drum, or as per your request. Application:sulfa drug, used to treat the in

Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

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

Sulfapyridine

Cas:144-83-2

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: Sulfapyridine CAS No.:144-83-2 Molecule Formula:C11H11N3O2S Molecule Weight:249.29 Purity: 99.0% Package: 25kg/drum Description:White or off-white powder Manufacture Standards:Enterprise Standard TEST

High Quality Sulfapyridine

Cas:144-83-2

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

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

Sulfapyridine

Cas:144-83-2

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

We produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp

Benzenesulfonamide,4-amino-N-2-pyridinyl-

Cas:144-83-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Dingyan Chem Co., Ltd

Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best qualit

Sulphapyridine

Cas:144-83-2

Min.Order:1 Gram

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

Sulfapyridine

Cas:144-83-2

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier

2-(p-Aminobenzenesulfonamido)pyridine (Sulfapyridine)

Cas:144-83-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Sinoway Industrial Co., Ltd.

Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment .5) We can do different t

99% up by HPLC Sulfapyridine 144-83-2

Cas:144-83-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

4-nitro-N-(pyridin-2-yl)benzenesulfonamide
1028-11-1

4-nitro-N-(pyridin-2-yl)benzenesulfonamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With iron; ammonium chloride In methanol at 80℃; for 3h; Temperature; Solvent;81%
With iron; acetic acid
With iron; ammonium chloride In methanol; water at 70℃; for 4h;
With sodium hydroxide; water; iron(II) sulfate
2-aminopyridine
504-29-0

2-aminopyridine

4-aminobenzenesulfonyl fluoride
98-62-4

4-aminobenzenesulfonyl fluoride

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With N,N-dimethyl-aniline at 180℃;
2-aminopyridine
504-29-0

2-aminopyridine

N-dichlorophosphoryl-sulfanilyl chloride
107145-69-7

N-dichlorophosphoryl-sulfanilyl chloride

sulphapyridine
144-83-2

sulphapyridine

2-aminopyridine
504-29-0

2-aminopyridine

3-(4-acetylamino-benzenesulfonyl)-2-benzenesulfonylimino-2,3-dihydro-thiazole
101570-35-8

3-(4-acetylamino-benzenesulfonyl)-2-benzenesulfonylimino-2,3-dihydro-thiazole

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With pyridine; sodium hydroxide; water
2-aminopyridine
504-29-0

2-aminopyridine

p-acetylaminobenzenesulfonyl chloride
121-60-8

p-acetylaminobenzenesulfonyl chloride

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
at 140℃;
Stage #1: 2-aminopyridine; p-acetylaminobenzenesulfonyl chloride With pyridine In tetrahydrofuran at 20℃; for 6h;
Stage #2: With sodium hydroxide for 2h; Reflux;
2-bromo-pyridine
109-04-6

2-bromo-pyridine

sulfanilamide
63-74-1

sulfanilamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With copper; potassium carbonate at 180℃;
2-iodopyridine
5029-67-4

2-iodopyridine

sulfanilamide
63-74-1

sulfanilamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With copper; potassium carbonate at 150℃;
4-chloro-N-pyridin-2-yl-benzenesulfonamide
1213-38-3

4-chloro-N-pyridin-2-yl-benzenesulfonamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With ammonia; water; copper; copper dichloride at 150 - 160℃;
With ammonia; water; copper(l) chloride at 150 - 175℃;
4-(butanoylamino)benzenesulfonyl chloride
99360-04-0

4-(butanoylamino)benzenesulfonyl chloride

Natrium-Verbindung des [2]Pyridylamins
40825-17-0

Natrium-Verbindung des [2]Pyridylamins

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With sodium hydroxide; water; Petroleum ether
N-acetylsulfapyridine
19077-98-6

N-acetylsulfapyridine

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With sodium hydroxide; water
With calcium hydroxide; water
With hydrogenchloride; water at 60℃;
4-phenylazo-benzenesulfonic acid-[2]pyridylamide

4-phenylazo-benzenesulfonic acid-[2]pyridylamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With nickel at 60 - 70℃; under 2574.3 Torr; Hydrogenation.in wss.-aethanol. NaOH;
With hydrogenchloride; tin; water
2-aminopyridine
504-29-0

2-aminopyridine

3-<N-acetyl-sulfanilyl> 2-phenylmethanesulfonylimino-2,3-dihydro-thiazole

3-<N-acetyl-sulfanilyl> 2-phenylmethanesulfonylimino-2,3-dihydro-thiazole

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With pyridine; sodium hydroxide; water
2-bromo-pyridine
109-04-6

2-bromo-pyridine

sodium-salt of sulfanilamide

sodium-salt of sulfanilamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With xylene
2-aminopyridine
504-29-0

2-aminopyridine

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dioxane
2: NaOH; water
View Scheme
Multi-step reaction with 2 steps
1: pyridine; acetone
2: HCl; water; ethanol
View Scheme
Multi-step reaction with 2 steps
1: pyridine
2: tin; HCl; water
View Scheme
p-acetylaminobenzenesulfonyl chloride
121-60-8

p-acetylaminobenzenesulfonyl chloride

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dioxane
2: NaOH; water
View Scheme
Multi-step reaction with 2 steps
1: pyridine; acetone
2: HCl; water; ethanol
View Scheme
Multi-step reaction with 2 steps
1: CaCO3; H2O
2: Ca(OH)2; water
View Scheme
2-bromo-pyridine
109-04-6

2-bromo-pyridine

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3; copper-powder / 220 °C
2: NaOH; water
View Scheme
4-(phenylazo)benzenesulfonyl chloride
102840-82-4

4-(phenylazo)benzenesulfonyl chloride

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine
2: tin; HCl; water
View Scheme
Azobenzene
1227476-15-4

Azobenzene

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: chlorosulfuric acid / 125 °C
2: pyridine
3: tin; HCl; water
View Scheme
p-acetylaminobenzenesulfonamide
121-61-9

p-acetylaminobenzenesulfonamide

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3; copper-powder / 220 °C
2: NaOH; water
View Scheme
Ni(H2NC6H4SO2NC5H4N)2(2-methylamino-1-{3-hydroxy-phenyl}-ethanol)2

Ni(H2NC6H4SO2NC5H4N)2(2-methylamino-1-{3-hydroxy-phenyl}-ethanol)2

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With mineral acid decompn. with strong mineral acid;
With mineral acid decompn. with strong mineral acid;
With mineral acid decompn. with strong mineral acid;
2-hydroxy-5-(4-pyridin-2-ylsulfamoyl-phenylazo)-benzoic acid
599-79-1

2-hydroxy-5-(4-pyridin-2-ylsulfamoyl-phenylazo)-benzoic acid

A

5-Aminosalicylic Acid
89-57-6

5-Aminosalicylic Acid

B

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
With azoreductase
4-Nitrobenzenesulfonyl chloride
98-74-8

4-Nitrobenzenesulfonyl chloride

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: dichloromethane / 0 - 20 °C
2: iron; ammonium chloride / methanol; water / 4 h / 70 °C
View Scheme
Acetanilid
103-84-4

Acetanilid

sulphapyridine
144-83-2

sulphapyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: chlorosulfonic acid / 0.5 h / 60 °C
2: pyridine / 4 h / 0 - 20 °C
3: sodium hydroxide / methanol / 3 h / 70 °C
View Scheme
2-chloro-6-methyl-1-hydroxy-3-aminobenzene

2-chloro-6-methyl-1-hydroxy-3-aminobenzene

sulphapyridine
144-83-2

sulphapyridine

(E)-4-((2-amino-3-chloro-4-hydroxy-5-methylphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide
1395084-37-3

(E)-4-((2-amino-3-chloro-4-hydroxy-5-methylphenyl)diazenyl)-N-(pyridin-2-yl)benzenesulfonamide

Conditions
ConditionsYield
Stage #1: sulphapyridine With hydrogenchloride In methanol; water; acetonitrile at 0℃; for 0.25h;
Stage #2: With isopentyl nitrite In methanol; water; acetonitrile at 0℃; for 0.916667h; Inert atmosphere;
Stage #3: 2-chloro-6-methyl-1-hydroxy-3-aminobenzene With potassium carbonate In methanol; water; acetonitrile at 0℃; for 0.5h; pH=8 - 10; Inert atmosphere;
99%
Stage #1: sulphapyridine With hydrogenchloride In methanol; acetonitrile at 0℃; for 0.25h;
Stage #2: With isopentyl nitrite In methanol; acetonitrile at 0 - 20℃; for 0.75h; Inert atmosphere;
Stage #3: 2-chloro-6-methyl-1-hydroxy-3-aminobenzene With potassium carbonate In methanol; acetonitrile at 0 - 20℃; pH=8 - 10; Inert atmosphere;
sulphapyridine
144-83-2

sulphapyridine

(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
80756-85-0

(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate

(Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)-N-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)acetamide

(Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)-N-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)acetamide

Conditions
ConditionsYield
With pyridine; triethylamine In ethanol; dichloromethane at 20℃; Inert atmosphere;96%
sulphapyridine
144-83-2

sulphapyridine

salicylic acid
69-72-7

salicylic acid

sulfosalazine
599-79-1

sulfosalazine

Conditions
ConditionsYield
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 2℃; for 0.333333h;
Stage #2: salicylic acid With sodium hydroxide In water at 7℃; for 1.5h; Temperature; Concentration;
95.4%
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 2℃; for 0.333333h;
Stage #2: salicylic acid With sodium hydroxide In water at 7℃; for 1.5h; pH=10; Temperature; Time; Concentration;
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 0℃; Flow reactor;
Stage #2: salicylic acid With glycine; sodium hydroxide In water; N,N-dimethyl-formamide at 25℃; pH=8.55 - 9; Flow reactor;
Conditions
ConditionsYield
With acetic acid In ethanol at 60℃; for 2h;92%
sulphapyridine
144-83-2

sulphapyridine

5-bromosalicyclaldehyde
1761-61-1

5-bromosalicyclaldehyde

C18H14BrN3O3S

C18H14BrN3O3S

Conditions
ConditionsYield
In ethanol at 78℃; for 6h;92%
4-chloro-2-phenylquinazoline
6484-25-9

4-chloro-2-phenylquinazoline

sulphapyridine
144-83-2

sulphapyridine

4-(2-phenylquinazolin-4-ylamino)-N-(pyridine-2-yl)benzenesulfonamide

4-(2-phenylquinazolin-4-ylamino)-N-(pyridine-2-yl)benzenesulfonamide

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 22h; Reflux;91%
sulphapyridine
144-83-2

sulphapyridine

2,2-dicyanomethyl-3-cyano-4,5,5-trimethyl dihydrofuran

2,2-dicyanomethyl-3-cyano-4,5,5-trimethyl dihydrofuran

4-(2-(4-cyano-5-(dicyanomethylene)-2,5-dihydro-2,2-dimethylfuran-3-yl)methylenehydrazinyl)−N-(pyridin-2-yl)benzenesulfonamide

4-(2-(4-cyano-5-(dicyanomethylene)-2,5-dihydro-2,2-dimethylfuran-3-yl)methylenehydrazinyl)−N-(pyridin-2-yl)benzenesulfonamide

Conditions
ConditionsYield
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 0 - 5℃;
Stage #2: 2,2-dicyanomethyl-3-cyano-4,5,5-trimethyl dihydrofuran With sodium acetate In acetonitrile for 1h;
91%
5-(4-bromo-benzylidene)-2-methylsulfanyl-thiazol-4-one
28996-12-5

5-(4-bromo-benzylidene)-2-methylsulfanyl-thiazol-4-one

sulphapyridine
144-83-2

sulphapyridine

C21H15BrN4O3S2

C21H15BrN4O3S2

Conditions
ConditionsYield
In acetic acid at 90℃; for 4h;90.3%
sulphapyridine
144-83-2

sulphapyridine

C11H7Cl2NOS2

C11H7Cl2NOS2

C21H14Cl2N4O3S2

C21H14Cl2N4O3S2

Conditions
ConditionsYield
In acetic acid at 90℃; for 4h;90.1%
4-methoxy-6-hydroxybenzofuran-5-carboxylic acid
88258-42-8

4-methoxy-6-hydroxybenzofuran-5-carboxylic acid

sulphapyridine
144-83-2

sulphapyridine

6-hydroxy-4-methoxy-7-[2-(2-pyridinylsulphamoyl)phenylazo]benzofuran-5-carboxylic acid
1248345-37-0

6-hydroxy-4-methoxy-7-[2-(2-pyridinylsulphamoyl)phenylazo]benzofuran-5-carboxylic acid

Conditions
ConditionsYield
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 0 - 10℃;
Stage #2: 6-hydroxy-4-methoxybenzofuran-5-carboxylic acid With sodium hydroxide In water at 5℃;
90%
cis,trans-2,5-dimethoxytetrahydrofuran
696-59-3

cis,trans-2,5-dimethoxytetrahydrofuran

sulphapyridine
144-83-2

sulphapyridine

N-(pyridin-2-yl)-4-(1H-pyrrol-1-yl)benzenesulfonamide

N-(pyridin-2-yl)-4-(1H-pyrrol-1-yl)benzenesulfonamide

Conditions
ConditionsYield
In 1,4-dioxane; acetic acid for 24h; Reflux;90%
Conditions
ConditionsYield
In ethanol at 60℃; for 4h;89%
sulphapyridine
144-83-2

sulphapyridine

5-Nitrosalicylaldehyde
97-51-8

5-Nitrosalicylaldehyde

C18H14N4O5S

C18H14N4O5S

Conditions
ConditionsYield
In ethanol at 78℃; for 6h;89%
sulphapyridine
144-83-2

sulphapyridine

C11H8FNOS2

C11H8FNOS2

C21H15FN4O3S2

C21H15FN4O3S2

Conditions
ConditionsYield
In acetic acid at 90℃; for 4h;88.2%
sulphapyridine
144-83-2

sulphapyridine

benzoic acid hydrazide
613-94-5

benzoic acid hydrazide

N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

4-(3-phenyl-4H-1,2,4-triazol-4-yl)-N-(pyridin-2-yl) benzenesulfonamide

4-(3-phenyl-4H-1,2,4-triazol-4-yl)-N-(pyridin-2-yl) benzenesulfonamide

Conditions
ConditionsYield
With acetic acid In acetonitrile for 9h; Reflux;88%
sulphapyridine
144-83-2

sulphapyridine

C11H8FNOS2

C11H8FNOS2

C21H15FN4O3S2

C21H15FN4O3S2

Conditions
ConditionsYield
In acetic acid at 90℃; for 6h;88%
sulphapyridine
144-83-2

sulphapyridine

(Z)-3-(dimethylamino)-1-(10H-phenothiazin-2-yl)prop-2-en-1-one

(Z)-3-(dimethylamino)-1-(10H-phenothiazin-2-yl)prop-2-en-1-one

(Z)-4-(3-oxo-3-(10H-phenothiazine-2yl)prop-1-enylamino)-N-(pyridin-2-yl)benzenesulfonamide

(Z)-4-(3-oxo-3-(10H-phenothiazine-2yl)prop-1-enylamino)-N-(pyridin-2-yl)benzenesulfonamide

Conditions
ConditionsYield
In ethanol for 18h; Reflux;88%
4,7-dichloroquinoline
86-98-6

4,7-dichloroquinoline

sulphapyridine
144-83-2

sulphapyridine

C20H15ClN4O2S
1448458-23-8

C20H15ClN4O2S

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 6h; Reflux;87%
In ethanol Reflux;71%
7-chloro-4-isothiocyanatoquinoline
884647-32-9

7-chloro-4-isothiocyanatoquinoline

sulphapyridine
144-83-2

sulphapyridine

C21H16ClN5O2S2
1449376-72-0

C21H16ClN5O2S2

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide for 18h; Reflux;86%
thiophosgene
463-71-8

thiophosgene

sulphapyridine
144-83-2

sulphapyridine

4-isothiocyanato-N-(pyridin-2-yl)benzenesulfonamide
7403-88-5

4-isothiocyanato-N-(pyridin-2-yl)benzenesulfonamide

Conditions
ConditionsYield
With hydrogenchloride In water at 20℃;86%
sulphapyridine
144-83-2

sulphapyridine

2-mercapto-1-methoxypersulfide

2-mercapto-1-methoxypersulfide

C21H31N3O2S3

C21H31N3O2S3

Conditions
ConditionsYield
With tris(pentafluorophenyl)borate In N,N-dimethyl-formamide at 20℃; for 24h; Green chemistry;86%
formaldehyd
50-00-0

formaldehyd

sulphapyridine
144-83-2

sulphapyridine

5-amino-2,3-dihydro-1,3,4-thiadiazole-2-thione
2349-67-9

5-amino-2,3-dihydro-1,3,4-thiadiazole-2-thione

N-(pyridin-2-yl)-4-((5-thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl-amino)-methylamino)-benzenesulfonamide

N-(pyridin-2-yl)-4-((5-thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl-amino)-methylamino)-benzenesulfonamide

Conditions
ConditionsYield
Stage #1: formaldehyd; 5-amino-2,3-dihydro-1,3,4-thiadiazole-2-thione In methanol for 1h;
Stage #2: sulphapyridine In methanol for 2h;
Stage #3: In methanol for 5h; Reflux;
85%
4-chloro-7-trifluoromethyl quinoline
346-55-4

4-chloro-7-trifluoromethyl quinoline

sulphapyridine
144-83-2

sulphapyridine

N-(pyridin-2-yl)-4-(7-(trifluoromethyl)quinolin-4-ylamino)benzenesulfonamide
1489236-25-0

N-(pyridin-2-yl)-4-(7-(trifluoromethyl)quinolin-4-ylamino)benzenesulfonamide

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 12h; Reflux;84%
sulphapyridine
144-83-2

sulphapyridine

methyl 2-[(pyridinecarbonyl)amino]benzoate
69873-67-2

methyl 2-[(pyridinecarbonyl)amino]benzoate

N-(2-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)carbamoyl)phenyl)picolinamide

N-(2-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)carbamoyl)phenyl)picolinamide

Conditions
ConditionsYield
Stage #1: sulphapyridine With potassium tert-butylate In acetonitrile for 2h; Reflux;
Stage #2: methyl 2-[(pyridinecarbonyl)amino]benzoate In acetonitrile Reflux;
83%
sulphapyridine
144-83-2

sulphapyridine

4-(4-methoxybenzylidene)-2-phenyl-5(4H)-oxazolone
5429-22-1

4-(4-methoxybenzylidene)-2-phenyl-5(4H)-oxazolone

4-{4-[1-(4-Methoxy-phenyl)-meth-(Z)-ylidene]-5-oxo-2-phenyl-4,5-dihydro-imidazol-1-yl}-N-pyridin-2-yl-benzenesulfonamide
81820-44-2

4-{4-[1-(4-Methoxy-phenyl)-meth-(Z)-ylidene]-5-oxo-2-phenyl-4,5-dihydro-imidazol-1-yl}-N-pyridin-2-yl-benzenesulfonamide

Conditions
ConditionsYield
With sodium acetate In acetic acid for 4h; Heating;82%
sulphapyridine
144-83-2

sulphapyridine

2-phenyl-4-(2'-methoxyphenylidene)-5-oxazolone
6948-65-8, 57427-84-6, 57428-00-9

2-phenyl-4-(2'-methoxyphenylidene)-5-oxazolone

4-{4-[1-(2-Methoxy-phenyl)-meth-(Z)-ylidene]-5-oxo-2-phenyl-4,5-dihydro-imidazol-1-yl}-N-pyridin-2-yl-benzenesulfonamide
81820-49-7

4-{4-[1-(2-Methoxy-phenyl)-meth-(Z)-ylidene]-5-oxo-2-phenyl-4,5-dihydro-imidazol-1-yl}-N-pyridin-2-yl-benzenesulfonamide

Conditions
ConditionsYield
With sodium acetate In acetic acid for 4h; Heating;82%
sulphapyridine
144-83-2

sulphapyridine

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

2-hydroxy-1-naphthaldehyde sulphapyridine

2-hydroxy-1-naphthaldehyde sulphapyridine

Conditions
ConditionsYield
In ethanol for 4h; Reflux;82%
In ethanol Heating;
ethanol
64-17-5

ethanol

sulphapyridine
144-83-2

sulphapyridine

3-Formylchromone
17422-74-1

3-Formylchromone

4-{[(2-ethoxy-4-oxo-2H-chromen-3(4H)ylidene)methyl]amino}-N-(pyridin-2-yl)benzenesulfonamide
1449215-88-6

4-{[(2-ethoxy-4-oxo-2H-chromen-3(4H)ylidene)methyl]amino}-N-(pyridin-2-yl)benzenesulfonamide

Conditions
ConditionsYield
With acetic acid for 3.5h; Reflux;82%
With toluene-4-sulfonic acid Heating;78%
Conditions
ConditionsYield
Stage #1: sulphapyridine With hydrogenchloride; sodium nitrite In water at 0 - 5℃;
Stage #2: curcumin With potassium hydroxide In water
82%
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