Polymer-supported preparation of substituted phenols: A new example of simultaneous cyclization-cleavage reaction on solid phase
作者:Alan R Katritzky、Sergei A Belyakov、Yunfeng Fang、John S Kiely
DOI:10.1016/s0040-4039(98)01771-7
日期:1998.10
A series of variously substituted phenols was synthesized in high yields using the “cyclization-cleavage” approach. Base-catalyzed reactions between α,β-unsaturated ketones and polymer-bound acetonyl groups result in a tandem Michael addition/annulation reaction followed by elimination and rearrangement into phenols. Since all intermediates are on the resin until the last stage, the final reaction