Process for producing 2,3,5-trichloropyridine

Details Process for producing 2,3,5-trichloropyridine Process for producing 2,3,5-trichloropyridine

1981-05-22

1983-04-12

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21302

Patent

active

043799388

ABSTRACT:
Production of 2,3,5-trichloropyridine by reacting 3,5-dichloro-2-pyridone at 30.degree. to 150.degree. with phosgene in the presence of an N,N-disubstituted formamide of the formula ##STR1## in which R.sub.1 and R.sub.2 can be identical or different and are each an alkyl group having 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the nitrogen atom form the pyrrolidino, piperidino or morpholino, and in the presence of an inert solvent.
2,3,5-Trichloropyridine is a valuable intermediate for producing herbicidally active .alpha.-[4-(3',5'-dichloropyrid-2-yloxy)-phenoxy]-alkanecarboxylic acids and derivatives thereof.

REFERENCES:
Rath, Justus Liebigs Ann.der Chemie, Band 486, pp. 74-79 Verlag Pub., Berlin, (1931).
Cava et al., Journal of Organic Chemistry, vol. 23, pp. 1614-1616, (1958).

Affiliated with

Also associated with

Rating

Process for producing 2,3,5-trichloropyridine 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 producing 2,3,5-trichloropyridine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing 2,3,5-trichloropyridine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-939645