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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.

DOI:10.1021/ja303220j
PMID:22734508
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3417118/
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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