Synthesis of symmetrical 1,3-diynes via tandem reaction of (Z)-arylvinyl bromides in the presence of DBU and CuI
作者:Wen-Sheng Zhang、Wen-Jing Xu、Fei Zhang、Gui-Rong Qu
DOI:10.1016/j.cclet.2013.03.016
日期:2013.5
(Z)-arylvinyl bromides involving an elimination and homocoupling in the presence of DBU and CuI in DMF affords a variety of symmetrical 1,3-diynes in good to excellent yields. This tandem process, eliminating the need of volatile and savory terminal alkynes, provides an alternative to the conventional homocoupling methods for the synthesis of symmetrical 1,3-diynes.
(Z)-芳基乙烯基溴化物的微波辅助串联反应,包括在DBU和CuI在DMF中的消除和均偶联,可产生多种对称的1,3-二炔,收率良好。这种串联方法消除了对挥发性和咸味末端炔的需要,为合成对称的1,3-二炔的常规均偶联方法提供了一种替代方法。