Spiro Compound Formation. III. The Formation of Spiro Compounds by the Rearrangement of Bicyclo[5.4.0]-undecene(1,7) and Cyclopentylcyclohexene
作者:Masatomo Nojima、Niichiro Tokura
DOI:10.1246/bcsj.42.1351
日期:1969.5
examined with equivalent amounts of perchloric acid in acetic acid or in ethanol at 75°C. In acetic acid, IV, V, and VI all rearranged to form spiro[5.5]-undecan-1-yl acetate (VII) and spiro[5.5]undecan-2-yl acetate (VIII), together with the three olefins IV, V, and VI. No rearranged product has been obtained by the same procedure in ethanol.
双环[5.4.0]十一烯-(1,7) (IV)、螺[5.5]十一烯-1 (V)和1-环戊基环己烯(VI)的异构化用等量的高氯酸溶于乙酸或在 75°C 的乙醇中。在乙酸中,IV、V和VI都重排形成螺[5.5]-十一烷-1-基乙酸酯(VII)和螺[5.5]十一烷-2-基乙酸酯(VIII),连同三个烯烃IV, V 和 VI。通过在乙醇中的相同程序未获得重排产物。