均相 CO 加氢：氢气的活化涉及受阻路易斯对而不是铂配合物。
Homogeneous CO hydrogenation: dihydrogen activation involves a frustrated Lewis pair instead of a platinum complex.
机构信息
Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, USA.
出版信息
J Am Chem Soc. 2010 Mar 17;132(10):3301-3. doi: 10.1021/ja100574n.
PMID:20178359
Abstract
During a search for conditions appropriate for Pt-catalyzed CO reduction using dihydrogen directly, metal-free conditions were discovered instead. A bulky, strong phosphazene base forms a "frustrated" Lewis pair (FLP) with a trialkylborane in the secondary coordination sphere of a rhenium carbonyl. Treatment of the FLP with dihydrogen cleanly affords multiple hydride transfers and C-C bond formation.
摘要
在寻找使用氢气直接进行铂催化一氧化碳还原的合适条件时，反而发现了无金属条件。一种庞大的、强的磷氮杂环戊二烯基碱与三烷基硼在铼羰基的次级配位球中形成“受阻”路易斯对（FLP）。用氢气处理 FLP 可以干净地进行多次氢转移和 C-C 键形成。
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