作者:Jason A Smulik、Steven T Diver
DOI:10.1016/s0040-4039(00)01922-5
日期:2001.1
Tandem enyne cross-metathesis/ring-closing metathesis between terminal alkynes and 1,5-hexadiene has been demonstrated using the 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene-substituted ruthenium benzylidene complex. Synthesis of 2-substituted 1,3-cyclohexadienes using this one step tandem reaction is reported. In addition, metathesis products were subjected to [4+2] cycloaddition with N-methylmaleimide
末端炔烃和1,5-己二烯之间的串联烯炔交叉复分解/闭环易位反应已使用1,3-二甲磺酰基-4,5-二氢咪唑-2-亚烷基取代的钌亚苄基络合物进行了证明。报道了使用这一一步串联反应合成2-取代的1,3-环己二烯。此外,在一个合成步骤中,将易位产物与N-甲基马来酰亚胺进行[4 + 2]环加成反应,得到相应的环加合物。