259875-95-1

Basic information

• Product Name: 3,5-dichloro-2,4,6-trifluopyridine
• Synonyms: 3,5-dichloro-2,4,6-trifluopyridine
• CAS NO: 259875-95-1
• Molecular Formula: C5Cl2F3N
• Molecular Weight: 201.96
• Mol File: 259875-95-1.mol
• Article Data: 14

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3,5-dichloro-2,4,6-trifluopyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 3,5-dichloro-2,4,6-trifluopyridine(259875-95-1)
• EPA Substance Registry System: 3,5-dichloro-2,4,6-trifluopyridine(259875-95-1)

Safety Data

• Hazardous Substances Data: 259875-95-1(Hazardous Substances Data)

Upstream product

• 110-89-4 piperidine 
• 2176-62-7 2,3,4,5,6-pentachloropyridine 
• 700-16-3 Pentafluoropyridine 
• 17717-16-7 tetrachloro-monofluoropyridine 
• 7789-23-3 potassium fluoride 
• 7664-39-3 hydrogen fluoride 

Downstream Products

• 698-51-1 3,5-dichloro-2,6-difluoropyridine 
• 63489-58-7 4-amino-2,6-difluoropyridine 
• 60186-25-6 3,4-diamino-2,6-difluoropyridine 
• 60186-20-1 4-amino-2,6-difluoro-5-nitropyridine 
• 60186-30-3 4,6-difluoro-1H-imidazo[4,5-c]pyridine 
• 405230-78-6 4-amino-3-chloro-2,6-difluoropyridine 
• 41662-64-0 benzyl 3,5-dichloro-2,6-difluoro-4-pyridyl ether 
• 2693-59-6 3,5-dichloro-4-methoxy-2,6-difluoropyridine 
• 3512-17-2 2,4,6-trifluoropyridine 
• 17723-18-1 4-azido-3,5-dichloro-2,6-difluoropyridine 
• 1682-79-7 3-Chlor-2,4,6-trifluor-pyridin 
• 1592-34-3 2,3-diethoxybutane 
• 1541-20-4 bicyclohexyl-2,2'-diene 
• 76293-21-5 3-chloro-5-cyclohexyltrifluoropyridine 

Relevant articles and documents

Preparation method of 4-aminopyridine compound

The invention discloses a preparation method of a 4-aminopyridine compound. The preparation method comprises the following steps: adding a 4-amino- 3-chloropyridine compound or a 4-amino-3, 5-dichloropyridine compound, potassium phosphate and a catalyst into a solvent, and reacting at 0-10 MPa and 0-100 DEG C for 4-12 hours. According to the preparation method of the 4-aminopyridine compound, therelated raw materials are easy to obtain or self-make, the cost is low, the preparation method is simple, the reaction efficiency is high, the raw material cost is low, and byproducts have economic value; meanwhile, the reaction involved in the invention has good universality and tolerance to functional groups.

Novel method for continuous production of fluroxypyr intermediate 3,5-dichloro-2,4,6-trifluoropyridine

The invention discloses a novel method for continuous production of fluroxypyr intermediate 3,5-dichloro-2,4,6-trifluoropyridine. The method comprises the steps as follows: N-stage reactors are used,compound pentachloropyridine and a catalyst are added to each stage of reactor, and hydrogen fluoride is introduced into the first-stage reactor after heating, melting and dehydration; unreacted hydrogen fluoride and produced hydrogen chloride tail gas in each stage of reactor are introduced into a condenser in each stage for condensing, the uncondensed tail gas is introduced into the next stage of reactor, the tail gas of the last stage of reactor is condensed by two condensers, hydrogen fluoride is separated, discharged, absorbed by a tail gas recovery device and used as by-product hydrochloric acid, and hydrogen fluoride condensed and recovered by the condenser in each stage is returned to each stage of reactor. With adoption of the synthesis method, hydrogen fluoride use rate is high,purity of by-product hydrochloric acid is high, and the content of hydrogen fluoride is lower than 1%; the method has the advantages of being high in product yield and reaction selectivity, solvent-free, low in production cost, simple in process, green and environmentally friendly, and is very suitable for industrial production.

A 3,5-dichloro -2, 4, 6-trifluoro-pyridine preparation method (by machine translation)

The invention discloses a 3, the 5 [...] two chloro -2, 4, 6-tri-fluoro pyridine preparation method, which belongs to the technical field of fine chemicals. Said method is the anhydrous potassium fluoride and 1,3 the [...] dimethyl -2 the imidazolone [...] uniformly mixed, after the distillation under reduced pressure, by adding pentachlorophenolate pyridine, in 80-120 °C lower substitution reaction, after filtering the reaction liquid, to obtain filtrate and filter residue; wash the filter residue solvent used, and after filtering, washing liquid obtained, and then the filtrate after the merger and cleaning liquid, by the rectified to obtain 3, the 5 [...] two chloro -2, 4, 6-tri-fluoro-pyridine. The invention has the advantages of low production cost, product purity and high yield. (by machine translation)