The ringexpansion of small-ring compounds provides a powerful method for the construction of various cyclic compounds. Herein, nitrene equivalent mediated metal-free ringexpansions of alkylidenecyclopropanes (ACPs) and an alkylidenecyclobutane (ACB) were described. In this synthesis, a series of aryl-substituted cyclobutylidene and cyclopentylidene hydrazine derivatives were obtained under mild conditions
Electrochemical oxidative C–C bond cleavage of methylenecyclopropanes with alcohols
作者:Rakesh Kumar、Shiv Dutt、Prabal Banerjee
DOI:10.1039/d4cc00843j
日期:——
ring opening functionalization of methylenecyclopropanes (MCPs) via C–Cbondcleavage in the presence of alcohols is reported. The methodology avoids the usage of external oxidants and shows good functional group tolerance. The mechanistic studies suggest that the reaction proceeds via direct single electron oxidation of the C–Cbond of MCPs followed by ring opening to form the desired product.