Tetrahedron

Hemisynthesis of methyl pyrethroates from γ-alkoxy-alkylidene malonates and isopropylidenediphenylsulfurane and isopropylidenetriphenylphosphorane

A Krief, A Froidbise

Index: Krief, Alain; Froidbise, Alexandre Tetrahedron, 2004 , vol. 60, # 35 p. 7637 - 7658

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Citation Number: 19

Abstract

Hemisynthesis of methyl pyrethroates from γ-alkoxy-alkylidene malonates and isopropylidenediphenylsulfurane and isopropylidenetriphenylphosphorane is disclosed. It takes advantage of the high degree of stereocontrol observed in the cyclopropanation of γ- alkoxy-alkylidene malonates by the above mentioned ylides.

~10%

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