Process of preparing dihalovinyl compounds

Details Process of preparing dihalovinyl compounds Process of preparing dihalovinyl compounds

1980-03-25

1981-12-22

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

260456R, 260463, 260941, 260946, 260950, 260957, 260960, 568346, 568347, 568591, 570216, 570218, C07C 67307, C07C 4148

Patent

active

043072437

ABSTRACT:
Conversion of esters (R.sup.1)(R.sup.2)C(C Hal.sub.3)OX, X being-P Hal.sub.2, --C(O)OR.sup.3 or ##STR1## R.sup.1, R.sup.3 and R.sup.4 being optionally substituted hydrocarbyl groups and R.sup.2 methyl or hydrogen, with zinc in acetic acid gives a very high yield of a dihalovinyl compound (R.sup.1)(R.sup.2)C.dbd.C Hal.sub.2, e.g., of the ethyl ester of the parent acid of pyrethroid insecticides.

REFERENCES:
patent: 4018838 (1977-04-01), Cleave
Stanley, J. Am. Chem. Soc., 81 pp. 1600-1602 (1959).
March, "Advanced Organic Chemistry", 2nd Ed., pp. 944-945 (1977).
Farkas, Coll. Czech. Chem. Commun., 24 pp. 2230-2236 (1959).

Affiliated with

Also associated with

Rating

Process of preparing dihalovinyl compounds 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 of preparing dihalovinyl compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of preparing dihalovinyl compounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2369154