摘要:
The reactions of esters and amides of 3-phenylpropynoic acid with strong Lewis acids AIX(3) (X = Cl, Br) or conjugate Bronsted-Lewis superacids HX-AIX(3) (X = Cl, Br) in benzene and cyclohexane at room temperature afforded 3,3-diphenylpropanoic acid derivatives in up to 94% yield. This tandem reaction of the acetylene bond proceeded by hydrophenylation followed by ionic hydrogenation. (C) 2015 Published by Elsevier Ltd.