Electron-transfer-induced photochemical reactions of (silylallyl)iminium and benzylpyrrolinium salts by dual diradical and diradical cation cyclization pathways
作者:In Seop Cho、Chung Lan Tu、Patrick S. Mariano
DOI:10.1021/ja00165a052
日期:1990.4
The electron-transfer-induced photocyclization reactions of a series of N- and C-silylmethallyl-substituted iminium and 1-benzyl-1-pyrrolinium salts have been investigated in order to gain information about their mechanistic course and to probe their synthetic potential. The results obtained from these studies demonstrate that diradical cation intermediates formed in these processes can be transformed
Arene-iminium salt photochemistry. Dramatic effects of sequential electron-transfer-desilylation pathways on the nature and efficiency of photoaddition and photocyclization processes
作者:Alexander J. Y. Lan、Suzanne L. Quillen、Robert O. Heuckeroth、Patrick S. Mariano
DOI:10.1021/ja00333a066
日期:1984.10
Photocyclization reactions of 1-benzyl-1-pyrrolinium salts by diradical and diradical cation pathways. Novel photochemical Pictet-Spengler cyclizations
作者:In Seop Cho、Patrick S. Mariano
DOI:10.1021/jo00242a056
日期:1988.4
Electron-transfer-induced photocyclization reactions of arene-iminium salt systems. Effects of cation-diradical deprotonation and desilylation on the nature and efficiencies of reaction pathways followed
作者:Alexander J. Y. Lan、Robert O. Heuckeroth、Patrick S. Mariano
DOI:10.1021/ja00243a029
日期:1987.4
The features of these photochemical processes whose chemical outcomes are dependent upon the nature of reactionpathways available to cationdiradical intermediates are discussed. Finally, the photoinduced, diradicalcyclization methodology for transformation of the silicon-containing N-xylylpyrrolinium perchlorates 4 and 6 has been compared to the alternative dipolar pathway promoted by fluoride-induced