Carbanion methodology for alkylations and acylations in the synthesis of substituted oxazoles. The formation of Cornforth rearrangement products.
作者:David R. Williams、E.Lynn McClymont
DOI:10.1016/s0040-4039(00)61544-7
日期:1993.11
Studies of monoalkylation of the dianion generated from 2-(5-oxazolyl)-1,3-dithiane led exclusively to substitution adjacent to sulfur. However, acylation reactions of afforded 4,5-disubstituted oxazoles as novel examples of direct acylation of the oxazole nucleus.
由2-(5-恶唑基)-1,3-二噻吩生成的二价阴离子的单烷基化研究仅导致与硫相邻的取代。然而,提供的4,5-二取代的恶唑的酰化反应作为恶唑核直接酰化的新实例。