Photochemical transformations. 33. Some studies of the photorearrangements of dibenzobarrelenes. A novel excitation-transfer relay mechanism
作者:Stanley J. Cristol、Russell L. Kaufman、Sumittada Malasanta Opitz、Wojciech Szalecki、Thomas H. Bindel
DOI:10.1021/ja00348a044
日期:1983.5
The regioselectivity of the di-..pi..-methane rearrangements did not vary with sensitizer, although the quantum yields did. The lack of depedence of product ratio upon sensitizer suggests that the product-determining step occurs after excitation transfer, rather than during it or in an exciplex containing tripletsensitizer and reactant.