Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1980-02-25
1981-09-08
Trousof, Natalie
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6760, C07C 69743, C07C 69747
Patent
active
042886104
ABSTRACT:
Saponifiable impurities are removed from pyrethroid intermediates represented by the structure ##STR1## wherein R represents an alkyl radical having from 1 to about 30 carbon atoms and wherein X.sup.1 and X.sup.2 each represent a halogen by selectively saponifying said impurities by reaction with an aqueous base.
REFERENCES:
patent: 3538143 (1970-11-01), Matsui
patent: 3652652 (1972-03-01), Julia
patent: 3931280 (1976-01-01), Nagase
patent: 3943167 (1976-02-01), Suzukamo
Gerstenzang William C.
Shippen Michael
Stauffer Chemical Company
Trousof Natalie
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