Synthesis of the glycidol (1R,2R)-1-iodo-2-(triphenylsilyloxy)cyclopropane: new rearrangements of 2,3-epoxy-3-(trialkyl/arylsilyl)-propan-1-ols

Abstract

Reaction of the mesylates of selected glycidols 1b, 5a, 5b and 5c with sodium iodide in acetone has been investigated. The mesylate 1b afforded the iodide 2 and the cyclopropane derivative 3 in a ratio which depended upon the reaction time. Whilst the mesylate 5a provided the iodide 6a as the sole product, the mesylates 5b and 5c gave mixtures of the corresponding unrearranged iodoepoxysilanes 6b and 6c, and the epoxides 7b and 7c.