Oxidative and dehydrative cyclizations of nitroacetate esters with Mn(OAc)3
作者:Barry B Snider、Qinglin Che
DOI:10.1016/s0040-4020(02)00911-0
日期:2002.9
Reaction of α-unsubstituted nitroacetates with Mn(OAc)3 gives mixtures of isoxazolines, formed by dehydration to a nitrile oxide that undergoes cycloaddition, and isoxazoline oxides or cyclopropane, formed by oxidative cyclization. Oxidative cyclization is favored with electron-rich alkenes and cycloaddition with the nitrile oxide to give isoxazolines is favored with electron-poor alkenes. On the other