作者:Satu Silver、Reko Leino
DOI:10.1002/ejoc.200500761
日期:2006.4
The preparation of new 1,2-unsymmetrically substituted fused-ring indenes from dialkenyl precursors by utilization of the ruthenium-catalyzed ring-closing metathesis is described. By analogous strategy, 1,3-substituted fused-ring indenes with medium-ring sizes have also been synthesized. For bis(allylsilyl)indene, the formation of a 1,3-fused ringappears to be prevented by ring strain and a 1,1-spiro
描述了利用钌催化的闭环复分解从二烯基前体制备新的 1,2-不对称取代的稠环茚。通过类似的策略,还合成了具有中等大小环的 1,3-取代稠环茚。对于双(烯丙基甲硅烷基)茚,由于环的应变可能会阻止 1,3-稠环的形成,并且由于取代基的重排而获得 1,1-螺环化合物。重排是通过在甲硅烷基取代的环戊二烯基化合物中进行的 [1,5] - 硅酮位移实现的。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)