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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

2,3,5,6-Tetrachloropyridine Manufacturer/High quality/Best price/In stock

Cas:2402-79-1

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 2,3,5,6-Tetrachloropyridine supplier in China

Cas:2402-79-1

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystalline powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum Applicati

2,3,5,6-Tetrachloropyridine Cas 2402-79-1

Cas:2402-79-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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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 2,3,5,6-tetrachloropyridine

Cas:2402-79-1

Min.Order:1

Negotiable

Type:Other

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COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:1 Metric Ton

Negotiable

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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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

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

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

High qualityCAS 2402-79-1 with competitive price

Cas:2402-79-1

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name 2,3,5,6-Tetrachloropyridine CAS NO 2402-79-1 Appearance White powder Assay 99.0-101.0% Grade Pharmaceutical grade

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

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

Pyridine,2,3,5,6-tetrachloro- 2402-79-1

Cas:2402-79-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

2,3,5,6-Tetrachloropyridine CAS:2402-79-1 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 organi

2,3,5,6-Tetrachloropyridine CAS:2402-79-1

Cas:2402-79-1

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

Pyridine,2,3,5,6-tetrachloro-

Cas:2402-79-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:1 Kilogram

FOB Price: $1.0 / 3.0

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

Pyridine,2,3,5,6-tetrachloro-

Cas:2402-79-1

Min.Order:0

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:0

Negotiable

Type:Manufacturers

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Triumph International Development Limilted

Appearance:White crystalline Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Pharmaceutical intermediates and Pesti... Transportation:Common products:Sea/Air/Cour

2,3,5,6-tetrachloropyridine

Cas:2402-79-1

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

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 2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

advantage: 1. The best price, satisfactory quality; 2. customers have the right to choose the delivery of parcels (EMS, DHL, FedEx, UPS); 3. customers have the right to choose from the recent effective packaging methods of their products packaging

Manufacturer/High quality 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:10 Gram

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 Offer2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Minstar Chemical Co., Ltd

2,3,5,6-Tetrachloropyridine Chemical Properties Melting point 90.5°C Boiling point 251.6°C density 2.0309 (rough estimate) refractive index 1.6000 (estimate) Fp 188°C pka -5.50±0.50(Predicted) BRN 129639

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:200 Kilogram

FOB Price: $65.0

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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

2,3,5,6-Tetrachloropyridine

Cas:2402-79-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

C5HCl4N 2,3,5,6-Tetrachloropyridine 2402-79-1

Cas:2402-79-1

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Suzhou Health Chemicals Co., Ltd.

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

2,3,5,6-tetrachloropyridine

Cas:2402-79-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
Stage #1: 2,3,4,5,6-pentachloropyridine With manganese; ammonium acetate In ethanol; water at 40℃; for 6h;
Stage #2: With ammonia In ethanol; water at 65℃; for 1h; pH=8 - 9; Concentration; Temperature;
99.5%
With ammonium chloride; zinc In acetonitrile at 80℃; for 3h; Reagent/catalyst; Solvent; Temperature; Green chemistry;88.4%
With ammonium chloride; dimethyl methane phosphonate; zinc In water for 0.5h; Yield given;
Pentafluoropyridine
700-16-3

Pentafluoropyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With hydrogen; potassium carbonate at 200℃; under 15001.5 Torr; for 2h; Autoclave;99.2%
2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

A

2,3,6-trichloropyridine
6515-09-9

2,3,6-trichloropyridine

B

2,3,5-trichloropyridine
16063-70-0

2,3,5-trichloropyridine

C

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With ammonium chloride; dimethyl methane phosphonate; zinc In water at 85 - 90℃; Product distribution; other ammonium salts; other methylphosphonates/phosphates;A 0.9%
B 1%
C 97.6%
tetrachloro-4-iodopyridine
30332-35-5

tetrachloro-4-iodopyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
In diethyl ether for 19h; Irradiation;87%
Multi-step reaction with 2 steps
1: 4 percent / copper bronze / dimethylformamide / 150 °C
2: 3 percent Chromat. / copper bronze / dimethylformamide / 20 h / 150 °C
View Scheme
methyl 4-cyano-2,2,4-trichlorobutyrate
41797-97-1

methyl 4-cyano-2,2,4-trichlorobutyrate

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
79%
tetrachloro-4-pyridylcopper
27425-94-1

tetrachloro-4-pyridylcopper

benzoyl chloride
98-88-4

benzoyl chloride

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

4-benzoyltetrachloropyridine
18613-89-3

4-benzoyltetrachloropyridine

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 0.5h; Heating;A 9%
B 72%
4-Bromo-2,3,5,6-tetrachloropyridine
23995-94-0

4-Bromo-2,3,5,6-tetrachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,6-Tetrachloropyridine
14121-36-9

2,3,4,6-Tetrachloropyridine

C

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

D

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With Isopropylbenzene; copper In N,N-dimethyl-formamide at 150℃; for 1h; Further byproducts given;A 63%
B 15%
C 16%
D 17%
4-Bromo-2,3,5,6-tetrachloropyridine
23995-94-0

4-Bromo-2,3,5,6-tetrachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,6-Tetrachloropyridine
14121-36-9

2,3,4,6-Tetrachloropyridine

C

octachloro-3,4'-bipyridyl

octachloro-3,4'-bipyridyl

D

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With copper; benzoyl chloride In N,N-dimethyl-formamide at 150℃; for 0.5h;A 61%
B 24%
C n/a
D 15%
tetrachloro-4-iodopyridine
30332-35-5

tetrachloro-4-iodopyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

C

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With copper In N,N-dimethyl-formamide at 150℃;A 22%
B 4%
C 52%
4-Bromo-2,3,5,6-tetrachloropyridine
23995-94-0

4-Bromo-2,3,5,6-tetrachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,6-Tetrachloropyridine
14121-36-9

2,3,4,6-Tetrachloropyridine

C

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

D

octachloro-3,4'-bipyridyl

octachloro-3,4'-bipyridyl

E

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With para-xylene; copper In N,N-dimethyl-formamide at 150℃; for 1h; Product distribution; Mechanism; the similar reaction without p-xylene; in presence cumene, benzoyl chloride instead p-xylene; other reagent (CuCl); other polychloroiodoarenes; tetrahalohenopyridylcopper intermediate; evidence against free radical or pyridyne intermediates;A 42%
B 5%
C 15%
D 4%
E 18%
4-Bromo-2,3,5,6-tetrachloropyridine
23995-94-0

4-Bromo-2,3,5,6-tetrachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

C

octachloro-3,4'-bipyridyl

octachloro-3,4'-bipyridyl

D

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With para-xylene; copper In N,N-dimethyl-formamide at 150℃; for 1h; Further byproducts given;A 42%
B 15%
C 4%
D 18%
With copper In N,N-dimethyl-formamide at 150℃; for 0.5h;A 17%
B 21%
C 8%
D 14%
With copper In N,N-dimethyl-formamide at 150℃; for 0.5h; Further byproducts given;A 10%
B 10%
C 9%
D 8%
4-Bromo-2,3,5,6-tetrachloropyridine
23995-94-0

4-Bromo-2,3,5,6-tetrachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

4-bromo-2,3,6-tetrachloropyridine
74894-06-7

4-bromo-2,3,6-tetrachloropyridine

Conditions
ConditionsYield
In diethyl ether for 71h; Irradiation;A 17%
B 6%
tetrachloro-4-pyridylcopper
27425-94-1

tetrachloro-4-pyridylcopper

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 1h; Heating;A 13.5%
B 1%
tetrachloro-4-pyridylcopper
27425-94-1

tetrachloro-4-pyridylcopper

benzoyl chloride
98-88-4

benzoyl chloride

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

4-benzoyltetrachloropyridine
18613-89-3

4-benzoyltetrachloropyridine

C

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

D

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With para-xylene In N,N-dimethyl-formamide for 23h; Product distribution; Mechanism; Heating; the similar reaction without p-xylene; other reaction times; similar range of products to those obtained from 4-bromotetrachloropyridine;A 12%
B 13%
C 1%
D 2.5%
tetrachloro-4-pyridylcopper
27425-94-1

tetrachloro-4-pyridylcopper

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

4-benzoyltetrachloropyridine
18613-89-3

4-benzoyltetrachloropyridine

C

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

D

octachloro-4,4'-bipyridyl
18725-60-5

octachloro-4,4'-bipyridyl

Conditions
ConditionsYield
With para-xylene; benzoyl chloride In N,N-dimethyl-formamide for 23h; Heating;A 12%
B 13%
C 1%
D 2.5%
pyridine
110-86-1

pyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With phosphorus pentachloride at 210 - 220℃;
With sulfur dichloride In tetrachloromethane at 0 - 80℃; for 6h; Temperature; Solvent; Inert atmosphere;
3,5,6-trichloropyridin-2 ol
6515-38-4

3,5,6-trichloropyridin-2 ol

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With phosphorus pentachloride; trichlorophosphate at 180℃;
tetrachloroisonicotic acid
19340-26-2

tetrachloroisonicotic acid

glycerol
56-81-5

glycerol

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
bei der Destillation; unter Kohlendioxyd-Entwicklung;
tetrachloroisonicotic acid
19340-26-2

tetrachloroisonicotic acid

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With water at 180℃;
With glycerol beim Destillieren;
2,6-diamino-3,5-dichloropyridine
76942-19-3

2,6-diamino-3,5-dichloropyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With hydrogenchloride; sodium nitrite Yield given;
2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,6-Tetrachloropyridine
14121-36-9

2,3,4,6-Tetrachloropyridine

C

2,3,4,5-tetrachloro-pyridine
2808-86-8

2,3,4,5-tetrachloro-pyridine

D

tetrachloro-4-dimethylaminopyridine
19942-44-0

tetrachloro-4-dimethylaminopyridine

Conditions
ConditionsYield
With copper In N,N-dimethyl-formamide at 150℃; for 20h;A 3 % Chromat.
B 22 % Chromat.
C 2 % Chromat.
D 13 % Chromat.
2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,4,6-Tetrachloropyridine
14121-36-9

2,3,4,6-Tetrachloropyridine

C

2,3,4,5-tetrachloro-pyridine
2808-86-8

2,3,4,5-tetrachloro-pyridine

D

tetrachloro-4-dimethylaminopyridine
19942-44-0

tetrachloro-4-dimethylaminopyridine

Conditions
ConditionsYield
With copper In N,N-dimethyl-formamide at 150℃; for 20h;A 3 % Chromat.
B 22 % Chromat.
C 2 % Chromat.
D 13 % Chromat.
2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

bis(tetrachloropyridyl)mercury
20543-31-1

bis(tetrachloropyridyl)mercury

Conditions
ConditionsYield
In N,N-dimethyl-formamide Hg cathode, -1.40 V (S.C.E.), Et4NBF4;A 0.66 g
B 0.59 g
2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

A

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

B

2,3,5,6,2',3',6'-heptachloro-[4,4']bipyridinyl
36277-69-7

2,3,5,6,2',3',6'-heptachloro-[4,4']bipyridinyl

Conditions
ConditionsYield
With carbon dioxide 1.) Hg cathode, DMF, Et4NBF4, -1.30 V (S.C.E.), 2.) 150 deg C, vacuum; Multistep reaction;
tetrachloroisonicotic acid
19340-26-2

tetrachloroisonicotic acid

water
7732-18-5

water

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
at 180℃; im Rohr;
2,3,5-trichloropyridine
16063-70-0

2,3,5-trichloropyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With sodium hydroxide; hexachloroethane; tetrabutylammomium bromide at 50℃; for 4h;
1-(4-dimethylamino)-[2,3,5,6-tetrachloro-pyridin-4-yl]pyridinium chloride

1-(4-dimethylamino)-[2,3,5,6-tetrachloro-pyridin-4-yl]pyridinium chloride

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
With sodium tetrahydroborate In isopropyl alcohol at 20℃; for 6h;
2,6-Diaminopyridine
141-86-6

2,6-Diaminopyridine

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 60 percent / aq. HCl, H2O2
2: NaNO2-HCl
View Scheme
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

2,3,5-trichloropyridine
16063-70-0

2,3,5-trichloropyridine

Conditions
ConditionsYield
With 5%-palladium/activated carbon; hydrogen; potassium hydroxide In 5,5-dimethyl-1,3-cyclohexadiene; water at 60℃; under 4500.45 Torr; for 6h; Reagent/catalyst; Solvent; Pressure; Autoclave;99.1%
With sodium hydroxide In benzene
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-pyrrolidin-1-ylpyridine
2456-81-7

4-pyrrolidin-1-ylpyridine

1,1'-bis[4-pyrrolidino-(3,5-dichloro-pyridine-2,6-diyl)pyridinium]dichloride

1,1'-bis[4-pyrrolidino-(3,5-dichloro-pyridine-2,6-diyl)pyridinium]dichloride

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 120℃; for 3h;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

(4-methoxystyrene)boronic acid
214907-25-2

(4-methoxystyrene)boronic acid

2,3,5,6-tetrakis(4-methoxystyryl)pyridine

2,3,5,6-tetrakis(4-methoxystyryl)pyridine

Conditions
ConditionsYield
With potassium phosphate; di-(1-adamantyl)-n-butylphosphine; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 100℃; for 20h; Suzuki-Miyaura Coupling; Inert atmosphere;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-trifluoromethylstyrenylboronic acid
851660-03-2

4-trifluoromethylstyrenylboronic acid

2,3,5,6-tetrakis(4-trifluoromethylstyryl)pyridine

2,3,5,6-tetrakis(4-trifluoromethylstyryl)pyridine

Conditions
ConditionsYield
With potassium phosphate; di-(1-adamantyl)-n-butylphosphine; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 100℃; for 20h; Suzuki-Miyaura Coupling; Inert atmosphere;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-methylstyrenylboronic acid
214907-11-6

4-methylstyrenylboronic acid

2,3,5,6-tetrakis(4-methylstyryl)pyridine

2,3,5,6-tetrakis(4-methylstyryl)pyridine

Conditions
ConditionsYield
With potassium phosphate; di-(1-adamantyl)-n-butylphosphine; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 100℃; for 20h; Suzuki-Miyaura Coupling; Inert atmosphere;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

phenylboronic acid
98-80-6

phenylboronic acid

tetraphenyl-2,3,5,6 pyridine
24301-97-1

tetraphenyl-2,3,5,6 pyridine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate In toluene at 100℃; for 22h; Reagent/catalyst; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-methoxyphenylboronic acid
5720-07-0

4-methoxyphenylboronic acid

2,3,5,6-tetrakis(4-methoxyphenyl)pyridine
54932-38-6

2,3,5,6-tetrakis(4-methoxyphenyl)pyridine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube;99%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2-cyano-2-(3,5,6-trichloropyridin-2-yl)acetate

ethyl 2-cyano-2-(3,5,6-trichloropyridin-2-yl)acetate

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 1h;98%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

phenylacetylene
536-74-3

phenylacetylene

2,3,5,6-tetrakis(phenylethynyl)pyridine

2,3,5,6-tetrakis(phenylethynyl)pyridine

Conditions
ConditionsYield
Stage #1: 2,3,5,6-tetrachloropyridine With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; dichloro bis(acetonitrile) palladium(II); copper(l) iodide; diisopropylamine In 1,4-dioxane at 20℃; for 0.166667h; Inert atmosphere;
Stage #2: phenylacetylene In 1,4-dioxane at 90℃; for 20h;
96%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-methylphenylboronic acid
5720-05-8

4-methylphenylboronic acid

2,3,5,6-tetra-p-tolylpyridine
54932-37-5

2,3,5,6-tetra-p-tolylpyridine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube;96%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

3,5,6-trichloro-2-hydrazinopyridine
55933-94-3

3,5,6-trichloro-2-hydrazinopyridine

Conditions
ConditionsYield
With hydrazine hydrate In methanol at 60 - 65℃; for 2h; Temperature; Green chemistry;96%
With sodium carbonate; hydrazine hydrate; butan-1-ol In water at 90 - 95℃;
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

1,1'-bis[4-dimethylamino-(3,5-dichloro-pyridine-2,6-diyl)pyridinium]dichloride

1,1'-bis[4-dimethylamino-(3,5-dichloro-pyridine-2,6-diyl)pyridinium]dichloride

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 120℃; for 3h;95%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

Dihydroxy-styryl-boran
4363-35-3, 6783-05-7, 60806-02-2

Dihydroxy-styryl-boran

2,3,5,6-tetrastyrylpyridine

2,3,5,6-tetrastyrylpyridine

Conditions
ConditionsYield
With potassium phosphate; di-(1-adamantyl)-n-butylphosphine; bis(dibenzylideneacetone)-palladium(0) In 1,4-dioxane at 100℃; for 20h; Reagent/catalyst; Solvent; Suzuki-Miyaura Coupling; Inert atmosphere;95%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

2,3,5,6-tetrafluoropyridine
2875-18-5

2,3,5,6-tetrafluoropyridine

Conditions
ConditionsYield
With potassium fluoride In sulfolane at 120℃; for 6h; Reagent/catalyst; Solvent; Green chemistry;95%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

(4-chloro-2-methoxyphenyl)boronic acid
762287-57-0

(4-chloro-2-methoxyphenyl)boronic acid

3,5-dichloro-2,6-bis-(4-chloro-2-methoxyphenyl)pyridine

3,5-dichloro-2,6-bis-(4-chloro-2-methoxyphenyl)pyridine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,2-dimethoxyethane for 6h; Inert atmosphere; Reflux;95%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

2-Methylphenylboronic acid
16419-60-6

2-Methylphenylboronic acid

3,5-dichloro-2,6-di-o-tolylpyridine

3,5-dichloro-2,6-di-o-tolylpyridine

Conditions
ConditionsYield
With potassium fluoride; tetrakis(triphenylphosphine) palladium(0) In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere;95%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-ethylphenylboronic acid
63139-21-9

4-ethylphenylboronic acid

2,3,5,6-tetrakis(4-ethylphenyl)pyridine

2,3,5,6-tetrakis(4-ethylphenyl)pyridine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube;94%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

butoxyethyl glycolate

butoxyethyl glycolate

butoxyethyl ester of [(3,5,6-trichloro-2-pyridyl)oxy]acetic acid

butoxyethyl ester of [(3,5,6-trichloro-2-pyridyl)oxy]acetic acid

Conditions
ConditionsYield
With N-benzyl-N,N,N-triethylammonium chloride; potassium carbonate In tetrahydrofuran for 5h; Reagent/catalyst; Solvent; Reflux;94%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-methoxyphenylacetylen
768-60-5

4-methoxyphenylacetylen

2,3,5,6-tetrakis-((4-methoxyphenyl)ethynyl)pyridine

2,3,5,6-tetrakis-((4-methoxyphenyl)ethynyl)pyridine

Conditions
ConditionsYield
Stage #1: 2,3,5,6-tetrachloropyridine With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; dichloro bis(acetonitrile) palladium(II); copper(l) iodide; diisopropylamine In 1,4-dioxane at 20℃; for 0.166667h; Inert atmosphere;
Stage #2: 4-methoxyphenylacetylen In 1,4-dioxane at 90℃; for 20h;
93%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

naphthalene-2-boronic acid
32316-92-0

naphthalene-2-boronic acid

3,5-dichloro-2,6-di(naphthalen-2-yl)pyridine

3,5-dichloro-2,6-di(naphthalen-2-yl)pyridine

Conditions
ConditionsYield
With potassium fluoride; tetrakis(triphenylphosphine) palladium(0) In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere;91%
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; acetonitrile for 4h; Inert atmosphere; Reflux;
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; acetonitrile for 4h; Inert atmosphere; Reflux;
Thien-3-ylboronic acid
6165-69-1

Thien-3-ylboronic acid

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

3,5-dichloro-2,6-di(thiophen-3-yl)pyridine

3,5-dichloro-2,6-di(thiophen-3-yl)pyridine

Conditions
ConditionsYield
With potassium fluoride; tetrakis(triphenylphosphine) palladium(0) In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere;91%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

phenylboronic acid
98-80-6

phenylboronic acid

3,5-dichloro-2,6-bisphenylpyridine

3,5-dichloro-2,6-bisphenylpyridine

Conditions
ConditionsYield
With potassium fluoride; tetrakis(triphenylphosphine) palladium(0) In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere;90%
With potassium fluoride; tetrakis(triphenylphosphine) palladium(0) In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube; regioselective reaction;77%
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; acetonitrile for 4h; Inert atmosphere; Reflux;
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; acetonitrile for 4h; Reflux; Inert atmosphere;
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

4-tert-butylphenylboronic acid
123324-71-0

4-tert-butylphenylboronic acid

2,3,5,6-tetrakis(4-tert-butylphenyl)pyridine

2,3,5,6-tetrakis(4-tert-butylphenyl)pyridine

Conditions
ConditionsYield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate In toluene at 100℃; for 22h; Suzuki-Miyaura Coupling; Inert atmosphere; Sealed tube;90%
2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

5'-tert-butyl-(1,1':3',1"-terphenyl)-3,3"-diol
1428946-28-4

5'-tert-butyl-(1,1':3',1"-terphenyl)-3,3"-diol

C54H42Cl4N2O4
1428946-32-0

C54H42Cl4N2O4

Conditions
ConditionsYield
With caesium carbonate In dimethyl sulfoxide at 120℃; for 0.5h; Inert atmosphere;89.4%
Methyl fluorosulfonate
421-20-5

Methyl fluorosulfonate

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

3,5,6-trichloro-1-methyl-2-pyridone
75348-52-6

3,5,6-trichloro-1-methyl-2-pyridone

Conditions
ConditionsYield
for 0.5h; Heating;89%
1-ethynyl-4-fluorobenzene
766-98-3

1-ethynyl-4-fluorobenzene

2,3,5,6-tetrachloropyridine
2402-79-1

2,3,5,6-tetrachloropyridine

3,5-dichloro-2,6-bis((4-fluorophenyl)ethynyl)pyridine

3,5-dichloro-2,6-bis((4-fluorophenyl)ethynyl)pyridine

Conditions
ConditionsYield
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); diisopropylamine In 1,4-dioxane at 90℃; for 20h; Sonogashira Cross-Coupling; Inert atmosphere; Sealed tube; regioselective reaction;89%
Stage #1: 2,3,5,6-tetrachloropyridine With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 20℃; for 0.166667h; Sonogashira Cross-Coupling; Inert atmosphere;
Stage #2: 1-ethynyl-4-fluorobenzene In 1,4-dioxane at 90℃; for 20h; Sonogashira Cross-Coupling; Inert atmosphere;
68%

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