Sensitized photorearrangement of 3, 3, 5-triaryl-2 (3H)-furanones to 3, 4, 5-triaryl-2 (5H)-furanones. Steady-state and laser flash photolysis investigations
KR Gopidas, BB Lohray, S Rajadurai…
Index: Gopidas, K.R.; Lohray, B.B.; Rajadurai, S.; Das, P.K.; George, M.V. Journal of Organic Chemistry, 1987 , vol. 52, # 13 p. 2831 - 2838
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Citation Number: 14
Abstract
A novel photorearrangement of 3, 3, 5-triaryl-2 (3H)-furanones la-e under acetone or acetophenone sensitization is reported. Sensitized irradiation of la-e in benzene gave a mixture of the photorearranged 2 (5H)-furanones 3 and 4, along with the corresponding phenanthrofuranones 5 and 6, respectively. In contrast, the direct irradiation of la-e gave the corresponding decarbonylated products 2a-e. On the basis of product analysis, p- ...
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