New Fischer Carbene Complexes of Rhodium(I): Preparation and 2-Cyclopentenone Ring Synthesis by Annelation to Alkynes
作者:José Barluenga、Rubén Vicente、Luis A. López、Eduardo Rubio、Miguel Tomás、Carmen Álvarez-Rúa
DOI:10.1021/ja038817q
日期:2004.1.1
A new type of metal carbene complexes of group 9, specifically a cationic Fischer carbene of rhodium(I), has been synthesized from chromium carbene complexes via double transfer of carbene and CO ligands. These complexes reveal a different reactivity than other transition metal carbenes, including their chromium precursors, toward neutral and electron-poor alkynes, giving selectively polysubstituted
已经从铬卡宾配合物通过卡宾和 CO 配体的双重转移合成了一种新型的第 9 族金属卡宾配合物,特别是铑 (I) 的阳离子费歇尔卡宾。这些配合物显示出与其他过渡金属卡宾(包括其铬前体)对中性和缺电子炔的反应性不同,从而产生选择性多取代的环戊烯酮。