Regiocontrolled synthesis of furans by a mercury(II) catalysed isomerisation of 1-alkynyl-2,3-epoxyalcohols
Abstract
2,3,5-Trisubstituted furans are formed by the reaction of 1-alkynyl-2,3-epoxyalcohols with a catalytic amount of mercury(II) prepared from HgO and dilute sulfuric acid.