Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1976-12-21
1978-05-30
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6965
Patent
active
040924823
ABSTRACT:
An improved process for preparing a 6,6,6-trihalo-3,3-dimethyl-4-hexenoate, intermediate in the production of pyrethroid insecticides, comprises dehydrohalogenating with an organic amine a 4,6,6,6-tetrahalo-3,3-dimethylhexanoate having a 4-halogen atom of higher atomic number than any of the 6-halogen atoms.
Kondo Kiyoshi
Matsui Kiyohide
Negishi Akira
Takahatake Yuriko
Ertelt Henry R.
Hansen Richard L.
Killos Paul J.
Sagami Chemical Research Center
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