\ The synthesis of centchroman has been improved. The hydrogenation under high pressure and configuration transformation in the reported route were omitted. The trans isomer was obtained in highly stereo selective ...\ The synthesis of centchroman has been improved. The hydrogenation under high pressure and configuration transformation in the reported route were omitted. The trans isomer was obtained in highly stereo selective Friedel Crafts alkylation and centchroman was obtained by five steps with the overall yield of 40%.展开更多
文摘\ The synthesis of centchroman has been improved. The hydrogenation under high pressure and configuration transformation in the reported route were omitted. The trans isomer was obtained in highly stereo selective Friedel Crafts alkylation and centchroman was obtained by five steps with the overall yield of 40%.