Synthesis of Benzofulvenes by Palladium-Catalyzed Cyclization of 1,2-Dialkynylbenzenes
作者:Chia-Ying Lee、Ming-Jung Wu
DOI:10.1002/ejoc.200601029
日期:2007.7
A palladium-catalyzed cyclization of enediynes for the synthesis of benzofulvenes 2 in yields of 59–76 % was accomplished by treatment of dialkynylbenzenes 1 with 5 mol-% of PdX2 and 3 equiv. of CuX2 in acetonitrile at 60 °C for 2 h. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
通过用 5 mol% PdX2 和 3 当量的二炔基苯 1 处理二炔基苯 1 来完成钯催化的烯二炔环化反应,以 59-76% 的产率合成苯并富烯 2。CuX2 在乙腈中在 60 °C 下反应 2 小时。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)