A simple synthesis of tetraethynylethenes and representative molecular structures of some dicobalt derivatives
作者:Olivia F Koentjoro、Philipp Zuber、Horst Puschmann、Andres E Goeta、Judith A.K Howard、Paul J Low
DOI:10.1016/s0022-328x(02)02191-5
日期:2003.3
6-bis(trimethylsilyl)-3,4-bis(trimethylsilylethynyl)-hex-3-ene-1,5-diyne with [Co2(CO)6(L2)] [L2=(CO)2 or μ-dppm] affords complexes in which one or two (trans) acetylene moieties are coordinated by a dicobalt fragment.
在回流的三乙胺中,钯-铜催化四氯乙烯与末端乙炔RCCH(R = SiMe 3,C 6 H 5,C 6 H 4 CN-4)的交叉偶联反应,可以分离出30-60%的产率得到相应的四乙炔基。1,6-双(三甲基甲硅烷基)-3,4-双(三甲基甲硅烷基乙炔基)-己-3-烯-1,5-二炔与[Co 2(CO)6(L 2)] [L 2 =( (CO)2或μ-dppm]提供了一种复合物,其中一个或两个(反式)乙炔部分由二叶草片段配位。