A convenient and efficient preparation of β-substituted α-haloenones from diazodicarbonyl compounds
作者:Yong Rok Lee、Bang Sub Cho、Hyuk Jin Kwon
DOI:10.1016/j.tet.2003.09.087
日期:2003.11
Rhodium(II)-catalyzed reactions of cyclic diazodicarbonyl compounds with a variety of halides have been examined. With acid halides, β-acyloxy α-haloenones are produced in good yields. With benzyl halides, β-benzyloxy α-haloenones are obtained in good yields. Reactions with methylene halides yield β-halomethoxy α-haloenones in good yields, whereas reactions with ethyl halides and ethylene dihalides