Alkynylation of Aldehydes and Ketones Using the Bu<sub>4</sub>NOH/H<sub>2</sub>O/DMSO Catalytic Composition: A Wide-Scope Methodology
作者:Elena Yu. Schmidt、Natalia A. Cherimichkina、Ivan A. Bidusenko、Nadezhda I. Protzuk、Boris A. Trofimov
DOI:10.1002/ejoc.201402275
日期:2014.7
Favorsky reaction of a wide range of aldehydes and ketones with alkynes has been implemented under mild conditions (5–20 °C). Using a Bu4NOH/H2O/DMSO catalytic system, propargylic alcohols are formed cleanly in 39–93 % (mostly 72–93 %) yields and with ca. 100 % selectivity. The method is suitable for aliphatic, aromatic, and heteroaromatic aldehydes and ketones, and for aliphatic, aromatic, and functionalized