Unsaturated 8-membered ring compounds. VIII. Photochemistry of 7, 8-dimethylene-1, 3, 5-cyclooctatrienes. Synthesis of bicyclo [6.2. 0] deca-1, 3, 5, 7-tetraene

JA Elix, MV Sargent, F Sondheimer

Index: Elix,J.A. et al. Journal of the American Chemical Society, 1970 , vol. 92, p. 969 - 973

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Citation Number: 15

Abstract

Abstract: Ultraviolet irradiation of 7, 8-dimethylene-l, 3, 5-cyclooctatriene (1) led to bicyclo [6.2. 0] deca-l, 3, 5, 7-tet-raene (4). Irradiation of 7-methylene-8-bromomethylene-1, 3, 5- cyclooctatriene (2) also gave 4, as well as 5-(or 6-) methylene-6-(or-5) bromomethylenetricyclo [5.1. 0.04* 8] oct-2-ene (10). Similar irradiation of 7-methylene-8- chloromethylene-l, 3, 5-cyclooctatriene (3) yielded 5-(or 6-) methylene-6-(or-5-) ...