Efficient Dehydration of Hydroxyenals and -enones: HfCl4 · (THF)2 as an effective Catalyst for Di-, Tri- and Tetraene Formation
作者:Susumu Saito、Takashi Nagahara、Hisashi Yamamoto
DOI:10.1055/s-2001-18094
日期:——
Polyenes were easily obtained from hydroxy(tri, di)ene-containing carbonyl compounds in good to excellent yields in the presence of catalytic HfCl4 · (THF)2.