Convenient Synthesis of Ethyl Triethylsilyldiazoacetate and Stereoselective Preparation of Aliphatic Silylketene Acetals:<i>In situ</i>Formation of Triethylsilyl Perchlorate
作者:Craig S. Wilcox、Robert E. Babston
DOI:10.1055/s-1985-31393
日期:——
Experimental details are reported for the silylation of esters by a method based upon in situ preparation of triethylsilyl perchlorate. The preparation of ethyl triethylsilyldiazoacetate (5) in 99% yield from ethyl diazoacetate (3) is detailed. A preparative procedure for the stereoselective formation of a (Z)-O-silylketene acetal 2b from isopropyl propanoate (1) is described.