ALBINI, ANGELO;FASANI, EFISA;FRATTINI, VALERIA, J. CHEM. SOC. PERKIN TRANS.,(1988) N 2, 235-240
作者:ALBINI, ANGELO、FASANI, EFISA、FRATTINI, VALERIA
DOI:——
日期:——
142. Some heterocyclic N-oxides
作者:P. Mamalis、V. Petrow
DOI:10.1039/jr9500000703
日期:——
Medium and substituent effects on the photochemistry of phenanthridine N-oxides. Is an intermediate of diradical character involved in the photorearrangement of heterocyclic N-oxides?
作者:Angelo Albini、Elisa Fasani、Valeria Frattini
DOI:10.1039/p29880000235
日期:——
The photochemistry of several 6-substituted phenanthridine N-oxides has been investigated, or reinvestigated, in benzene and ethanol. The main processes observed are: (a) 1,2-oxygen and substituent shift to yield N-substituted phenanthridones (2) and (b) ring enlargements to dibenzo[d,f]-1,3-oxazepines (7). With 6-diphenylmethylphenanthridine N-oxide (1b) rearrangement (a) predominates and occurs with