A short synthesis of dibenzofurans and dibenzothiophenes
作者:Michael Black、J. I. G. Cadogan、Hamish McNab
DOI:10.1039/c39900000395
日期:——
An efficient synthesis of dibenzofurans and dibenzothiophenes from aryl salicylates is described, which involves a novel rearrangement–extrusion–cyclisation sequence of o-substituted phenoxyl and thiophenoxyl radicals.