Lewis Acid-Activated Reactions of Silyl Ketenes for the Preparation of α-Silyl Carbonyl Compounds
作者:Sarah M. Mitchell、Yuanhui Xiang、Rachael Matthews、Alexis M. Amburgey、Emily B. Pentzer
DOI:10.1021/acs.joc.9b01859
日期:2019.11.15
Silyl-substituted ketenes are attractive molecular building blocks due to their stability and ease of storage, as opposed to unstable alkyl and aryl ketenes. To better understand the reactivity of silyl ketenes and, in turn, their use in the preparation of highly functionalized small molecules, the reaction of silyl ketenes with different nucleophiles was studied. The addition of alcohol, amine, or
作者:S. V. Ponomarev、A. S. Zolotareva、R. N. Ezhov、Yu. V. Kuznetsov、V. S. Petrosyan
DOI:10.1023/a:1011346024964
日期:——
Silylation of silyl- and germylketenes with trialkylsilyl triflates was studied. Either the corresponding bis-organoelement-substituted ketenes or mixtures of these compounds with isomeric (silyloxy)silylacetylenes were formed depending on the size of the substituents at the silicon or germanium atom (both in ketenes and triflates) and on the nature of the heteroelement. The resulting (silyloxy)silylacetylenes were isomerized into the corresponding bis-sitylketenes upon prolonged storage.
HIMBERT, G.;HENN, L., LIEBIGS ANN. CHEM., 1984, N 7, 1358-1366