R. D. Haan, E. Zwart, J. Cornelisse
Jan 22, 1997
Citations
0
Influential Citations
4
Citations
Journal
Journal of Photochemistry and Photobiology A-chemistry
Abstract
Abstract 2-Methoxy-5-[3-(trifluoromethyl)phenyl]pent-1-ene undergoes 2,6- and 1,3- meta -photocycloaddition on irradiation ( λ = 254 nm). The methoxy group has the endo configuration in the photocycloadducts. Irradiation of the para - and ortho -CF 3 -substituted 2-methoxy-5-phenylpent-1-enes leads to intramolecular ortho -photocycloadducts. The difference in product formation is related to the free enthalpy of electron transfer.