Method for producing substituted pyridine derivatives

Details Method for producing substituted pyridine derivatives Method for producing substituted pyridine derivatives

1994-10-04

1995-12-12

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21138

Patent

active

054751128

ABSTRACT:
A method for producing a substituted pyridine derivative of the formula (II): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom, a halogen atom or an alkyl group, and m is an integer of from 1 to 3, which comprises reducing a substituted trichloromethylpyridine derivative of the formula (I): ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined above, with use of acetic acid, hydrochloric acid or sulfuric acid, as a proton donor, and zinc, tin or a mixture thereof, as a reducing agent.

REFERENCES:
patent: 4260766 (1981-04-01), Morris
patent: 5037824 (1991-08-01), Takasugi et al.
Chem Abstracts vol. 95, 1981 p. 635 #95:97603w "6-Chloro-2-(Chloromethyl)Pyridines".
World Patents Index Latest, Week 9009, AN 90-065844, & SU-A-1479427, May 15, 1989, "Glass Composition Comprise Oxide Silicon Boron Aluminium Magnesium Calcium Strontium Barium".
Patent Abstracts of Japan, vol. 12, No. 301(C-521), Aug. 16, 1988, & JP-A-63-074935, Apr. 5, 1988, "Glass Composition for Substrate, Having Improved Chemical Resistance".
Chemical Abstracts, vol. 90, No. 26, Jun. 25, 1979, No. 208890F, p. 312, V. Nikulin, et al., "Heat-Resistant Glass".
Chemical Abstracts, vol. 102, No. 8, Feb. 25, 1985, No. 66289G, p. 263, "Acid Resistant Barium Silicate Glass".
World Patents Index Latest, Week 8532, An 85-192599, & JP-A-60-118648, Jun. 26, 1985, "Glaze Composition Ceramic Substrate Contain Oxide Silicon Aluminium Boron Calcium Barium Strontium".

Affiliated with

Also associated with

Rating

Method for producing substituted pyridine derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing substituted pyridine derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing substituted pyridine derivatives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1360884