Exchanging fluorine for chlorine in a chlorinated pyridine with

Details Exchanging fluorine for chlorine in a chlorinated pyridine with Exchanging fluorine for chlorine in a chlorinated pyridine with

1983-06-03

1985-09-17

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546304, 546297, C07D21302

Patent

active

045422214

ABSTRACT:
A process for preparing a fluoropyridine compound by reacting a chlorinated pyridine compound with a molar excess of an alkali metal fluoride, especially potassium fluoride, in the presence of a catalytic amount of a catalyst selected from halides of organometals and halides of metals of the iron, nickel and copper groups, and which is preferably FeCl.sub.3, whereby at least one chlorine atom of the chlorinated pyridine compound is replaced by a fluorine atom. Of special interest is the preparation of 3,5-dichloro-2,4,6-trichloropyridine from pentachloropyridine.
The compounds prepared by such a process are useful for the preparation of agriculturally-useful fluoropyridines.

REFERENCES:
Chambers et al., Journal of the Chemical Society, London, pp. 594-597 (1965).
Chemical Abstracts, vol. 68, No. 5, Abstract No. 21,504m, Jan. 29, 1968, abstracting German Pat. No. 1,248,024, issued Aug. 24, 1967.

Affiliated with

Also associated with

Rating

Exchanging fluorine for chlorine in a chlorinated pyridine with does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exchanging fluorine for chlorine in a chlorinated pyridine with , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exchanging fluorine for chlorine in a chlorinated pyridine with will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-370817