Syntheses of Racemic and Scalemic cis??Chrysanthemic Acid from β, γ??Unsaturated Cyclohexanol

…, S Jeanmart, HY Gondal, A Kremer

Index: Krief, Alain; Jeanmart, Stephane; Gondal, Humaira Y.; Kremer, Adrian Helvetica Chimica Acta, 2012 , vol. 95, # 11 p. 2123 - 2167

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Abstract

Abstract 2, 2, 5, 5-Tetramethylcyclohexane-1, 3-dione is a valuable starting-material precursor of cis-chrysanthemic acid. The (1S)-stereoisomer is a precursor of pyrethrin I, the most active natural insecticide from Chrysanthemum cinerariifolium, whereas the (1R)- stereoisomer is efficiently transformed to deltamethrin, the most active commercially available pyrethroid insecticide. Several intermediates have been identified and used with ...