Mechanism of reduction of 3,4,5-triphenylfuran-2(5H)-ones by lithium aluminium hydride
Abstract
A detailed study of the reduction of 3,4,5-triphenylfuran-2(5H)-ones with lithium aluminium hydride, with deuterium as a marker, has been performed. On the basis of the results it is proposed that 1,4-hydride attack is followed by regiospecific hydridoalumination of the enolate double bond only in those cases where the resulting complex can be stabilised.