Tetrahedron Letters

Chloroethoxy (trimethyl) silane: A hard-base trap which preserves tms ether groups and improves the wittig methylenation of gibberellins

LN Mander, JV Turner

Index: Mander, Lewis N.; Turner, John V. Tetrahedron Letters, 1981 , vol. 22, # 41 p. 4149 - 4152

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Citation Number: 15

Abstract

Abstract A reagent, 2-chloroethoxy (trimethyl) silane (CETS), has been devised which ensures the preservation of TMS ether groups during Wittig methylenation in protic media and which makes this formerly capricious reaction with 16-keto gibberellins a reliable and straightforward procedure.