Reaction of Electron-Deficient NN, NO Double Bonds, Singlet Oxygen, and CC Triple Bonds with Acyloxyketenes or Mesoionic 1,3-Dioxolium-4-olates: Generation of Unstable Mesoionic 1,3-Dioxolium-4-olates from Acyloxyketenes
作者:Masashi Hamaguchi、Naoki Tomida、Yuji Iyama
DOI:10.1021/jo0621975
日期:2007.2.1
Formation of the same compounds from the different starting materials indicates that their reactions involve the same intermediates. The formation of triacylbenzamidine and N-arylimide derivatives is explained by 1,3-dipolarcycloaddition between electron-deficient NN or NO bonds and mesoionic 1,3-dioxolium-4-olates following by decarboxylation, ring opening of the resultant carbonyl ylides, and subsequent