Hydrobenzofuranoid–bicyclo[3.2.1]octanoid neolignan rearrangement

Abstract

The acid catalysed rearrangement of hydrobenzofuranoid neolignans into bicyclo[3.2.1]octanoid compounds is described; this rearrangement which, according to a literature report, can also take place in the opposite direction, seems to be governed by stereochemical factors.