J. Grimshaw, A. P. Silva
1979
Citations
0
Influential Citations
3
Citations
Journal
Journal of The Chemical Society, Chemical Communications
Abstract
Photocyclisation of 1,3-diphenyl-5-(2′-halogenophenyl)pyrazoles proceeds in high quantum yield from the S0v state followed by homolytic cleavage of the carbon–halogen bond assisted by intramolecular radical complexation whereas that of 1,3-diphenyl-5-(2′-methoxyphenyl)pyrazole proceeds by a different and low quantum yield pathway.