Process for the production of chloropyridines substituted by met

Details Process for the production of chloropyridines substituted by met Process for the production of chloropyridines substituted by met

1983-07-08

1984-09-04

Lone, Werren B.

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

Organic compounds

Oxygen containing

568448, C07C 4714

Patent

active

044698968

ABSTRACT:
Chloropyridines of the formula ##STR1## wherein either R is chlorine and R' is methyl or trifluoromethyl, or R is methyl, trichloromethyl or trifluoromethyl and R' is chlorine, or R and R' are methyl, can be obtained by a novel, simple process by the addition of trichloroacetaldehyde to methacrylonitrile or .alpha.-trifluoromethacrylonitrile, 2,2-dichloropropionaldehyde, pentachloropropionaldehyde or 2,2-dichloro-3,3,3-trifluoropropionaldehyde to acrylonitrile, or 2,2-dichloropropionaldehyde to methacrylonitrile, in the presence of a catalyst, in particular copper powder or copper(I) chloride, and cyclizing the open-chain intermediate obtained.
The chloropyridines of the formula (I) are known per se and are suitable for the production of different compounds, in particular of insecticides and herbicides.

REFERENCES:
patent: 2568500 (1951-09-01), Housted et al.
Bekker et al., "Chemical Abstracts", vol. 83, (1975), p. 147,047t.

Affiliated with

Also associated with

Rating

Process for the production of chloropyridines substituted by met does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of chloropyridines substituted by met, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of chloropyridines substituted by met will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1893307