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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
Regiospecific C-N photocyclization of 2-styrylquinolines
Elena N Gulakova1, Daria V Berdnikova, Tseimur M Aliyeu
1A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences , 28 Vavilova str., 119991 Moscow, Russia.
Abstract:
Regiospecific C-N photocyclization of 2-styrylquinolines resulting in formation of potentially biologically active quino[1,2-a]quinolizinium derivatives was investigated. The presence of strong electron-donating groups in the phenyl ring reveals to be a crucial factor managing photocyclization effectiveness. Introduction of a crown ether moiety allows changing the photoreaction parameters by means of complexation with Mg(ClO4)2.
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