Construction of Cyclic Nitrones Enabled by Photodriven and Gold-Catalyzed 1,3-Azaprotio Transfer of Allenyloximes
作者:Zhenjie Qi、Shaozhong Wang
DOI:10.1021/acs.joc.3c01937
日期:2023.11.3
protocol was developed to construct five- to seven-membered cyclic nitrones through the gold-catalyzed 1,3-azaprotio transfer of allenyloximes under photoirradiation. The photoisomerization of oximes was suggested to convert the inert stereoisomer to a reactive one. This photodriven and gold-catalyzed ring formation could be further extended to the thermodynamically stable aryl ketoximes with an E-configuration
A new approach to cyclic nitrones: Application to the synthesis of α,α′-disubstituted piperidines and pyrrolidines
作者:David Lathbury、Timothy Gallagher
DOI:10.1016/s0040-4039(00)95065-2
日期:1985.1
A new synthesis of nitrones is described. This involves the Ag(I)-catalysed cyclisation of allenic oximes, the resulting nitrones being trapped by various 1,3-dipolarophiles.