Extended dipolar cycloaddition reactions of 3-diazopyrazoles with electron rich olefins
作者:Albert Padwa、Tsutomu Kumagai
DOI:10.1016/s0040-4039(01)90273-4
日期:1981.1
3-Diazo-4-methyl-5-phenylpyrazole readily adds to electronricholefins to give 1,7-cycloadducts. The mechanism of the reaction consists of an initial 1,3-dipolar cycloaddition followed by a subsequent rearrangement.