A facile method of trifluoroacylation of imidazoles, 1,3-thiazoles, and 1,3-oxazoles with trifluoroacetic anhydride resulted in a set of heterocyclic trifluoromethyl-containing ketones. Unlike common ketones, these compounds form stable hydrates and enter into noncatalytic ene reactions with terminal olefins affording the corresponding allyl alcohols.
Catalyst-free C(sp<sup>3</sup>)–H functionalization of methyl azaarenes with heteroaromatic trifluoromethyl ketone hydrates: “all-water” synthesis of α-trifluoromethyl tertiary alcohols
作者:Wei Wang、Zhaoliang Qin、Xinhui Zhang、Wanxiang Zhao、Wen Yang
DOI:10.1039/d3ob00566f
日期:——
with heteroaromatic trifluoromethyl ketone hydrates in neat water has been developed for the synthesis of α-trifluoromethyl tertiary alcohols bearing N-heteroaromatics. This method not only features excellent efficiency, broad substrate scope, catalyst-free conditions, and easy gram-scale preparation but also represents a new and rare example of “all-water” synthesis of trifluoromethylated molecules.