Trihalomethylhydroxylactones and a process for their...

Details Trihalomethylhydroxylactones and a process for their... Trihalomethylhydroxylactones and a process for their...

C - Chemistry, Metallurgy

07

C

260/518, 260/366

C07C 59/205 (2006.01) C07C 62/18 (2006.01) C07C 69/747 (2006.01) C07D 307/93 (2006.01)

Patent

CA 1170663

- 12 - K 421 ABSTRACT Novel trihalomethylhydroxylactones of the general formula:- Image and the cis-tautomeric-keto-acids, esters and salts wherein Xl, X2 and X3 represent a fluorine, chlorine or bromine atom. These compounds are useful intermediates in the preparation of cis-2- (2,2-dihalovinyl)-3,3-dimethyl-cyclopropanecarboxylic acids which are key intermediates in the manufacture of pyrethroid insecti- cides.

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