Conversion of nitrosobenzenes to isoxazolidines: an efficient cascade process utilizing reactive nitrone intermediates
作者:Jun Yong Kang、Alejandro Bugarin、Brian T. Connell
DOI:10.1039/b806374e
日期:——
Reactive nitrones can be generated directly in situ by an unusual reaction of nitrosobenzene with styrene.
反应性氮烯可以通过亚硝基苯与苯乙烯的不寻常反应在原位直接生成。
Access to Isoxazolidines through Visible-Light-Induced Difunctionalization of Alkenes
作者:Hui Yang、Guo Wei、Zhiyong Jiang
DOI:10.1021/acscatal.9b03567
日期:2019.10.4
decarboxylation of N-aryl glycines are added to alkenes and the resulting radical intermediates are trapped by superoxides. The peroxides undergo swift intramolecular amine oxidation to provide the valuable isoxazolidines. Alkenes with varied functionalization can be applied. The isoxazolidine ring can be readily opened via reduction by zinc in acetic acid to afford γ-lactams in high yield.