Nitrone Cycloadditions to 1,2-Diphenylcyclopropenes and Subsequent Transformations of the Isoxazolidine Cycloadducts
作者:Vyacheslav V. Diev、Oksana N. Stetsenko、Tran Q. Tung、Jürgen Kopf、Rafael R. Kostikov、Alexander P. Molchanov
DOI:10.1021/jo702379d
日期:2008.3.1
occurs with the formation of expected “normal” cycloadducts (with N-methylnitrones) and products of their subsequent transformations. Among them are corresponding α-acetophenyl aziridines and tetra (or penta) -arylpyrroles. Aziridines and the normal cycloadducts can be also thermally converted to such arylpyrroles with moderate to good yields. Substitution at the C3 position of cyclopropenes by an electron