Reactions of propargyl alcohols. II. Solvent effects in the reduction of 1,1-Diphenylbut-2-yn-1-ol with lithium aluminium hydride

Abstract

Lithium aluminium hydride reduction of 1,1-diphenylbut-2-yn-1-ol in diethyl or diisopropyl ether gave 1,1-diphenylbuta-1,2-diene (4) and the (Z)- and (E)-1,1-diphenylbut-2-en-1-ols (5) and (6), but reaction in tetrahydrofuran solution gave only the (E)-alkenol (6).