Synthesis and reactions of t-butyltellurocarbonyloxyalkanes

Abstract

Reaction of t-butylchloromethylenedimethylammonium chloride with alcohols and sodium hydrogen telluride gave t-butyltellurocarbonyloxyalkanes. 3β-t-Butyltellurocarbonyloxy-5α-cholestane [Bu^tC(Te)OR] gave the ester (Bu^tCO₂R) with diphenylseleninic anhydride, and ethers (Bu^tCH₂OR) and [(Bu^tCHOR)₂] with sodium hydrogen telluride. The ethers were formed via the oligotelluride [(Bu^tCHOR)₂Te_n; n= 1–4] which with N-bromosuccinimide gave the imide [(Bu^tCHOR)-N(COCH₂CH₂CO)].