Cyanomethylene cyclopropane, a useful dipolarophile and dienophile in [2+3] and [2+4] cycloadditions

Article abstract of DOI:10.1016/S0040-4039(98)01496-8

Cyanomethylene cyclopropane, prepared for the first time on large scale proved to be a reactive dipolarophile and dienophile in several cycloadditions. The reactivity of this compound has been compared with 3- methyl-2-butenenitrile, ethyl 3-methyl-2-butenoate and ethoxycarbonylmethylene cyclopropane.