钼和钨单芳氧基亚胺茂（MAP）配合物对 1,3-二烯的 Z 选择性交叉复分解反应。
Z-selective metathesis homocoupling of 1,3-dienes by molybdenum and tungsten monoaryloxide pyrrolide (MAP) complexes.
机构信息
Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
出版信息
J Am Chem Soc. 2012 Jul 18;134(28):11334-7. doi: 10.1021/ja303220j. Epub 2012 Jul 2.
Abstract
Molybdenum or tungsten monoaryloxide pyrrolide (MAP) complexes that contain OHIPT as the aryloxide (hexaisopropylterphenoxide) are effective catalysts for homocoupling of simple (E)-1,3-dienes to give (E,Z,E)-trienes in high yield and with high Z selectivities. A vinylalkylidene MAP species was shown to have the expected syn structure in an X-ray study. MAP catalysts that contain OHMT (hexamethylterphenoxide) are relatively inefficient.
摘要
钼或钨单芳氧基亚基吡咯烷（MAP）配合物，其中芳氧基亚基（六异丙基邻苯二酚）为 OHIPT（六异丙基邻苯二酚），是高效的催化剂，可使简单的（E）-1,3-二烯高收率和高 Z 选择性地发生同偶联，生成（E,Z,E）-三烯。在 X 射线研究中，显示出具有预期顺式结构的乙烯基亚烷基 MAP 物种。含有 OHMT（六甲基邻苯二酚）的 MAP 催化剂效率相对较低。
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