Intramolecular Etherification and Polyene Cyclization of π-Activated Alcohols Promoted by Hot Water
作者:Feng-Zhi Zhang、Yan Tian、Guo-Xing Li、Jin Qu
DOI:10.1021/jo502636d
日期:2015.1.16
Hot water, acting as a mildly acidic catalyst, efficientlypromoted intramolecular direct nucleophilic substitution reactions of unsaturatedalcohols with heteroatom or carbon nucleophiles. In a mixed solvent of water and 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP), polyene cyclizations using allylic alcohols as initiators gave the desired cyclized products, and in neat HFIP, a tricyclization reaction