小夹角 2-膦亚膦基配体促进羰基的铑催化硼氢化反应。
Small bite-angle 2-phosphinophosphinine ligands enable rhodium-catalysed hydroboration of carbonyls.
机构信息
Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
出版信息
Chem Commun (Camb). 2018 May 24;54(43):5482-5485. doi: 10.1039/c8cc01880d.
PMID:29756624
Abstract
Two Rh complexes of the 2-phosphinophosphinine ligand 2-PPh2-3-Me-6-SiMe3-C5H2P (1) were prepared: dinuclear trans-[{Rh(CO)(Cl)(μ-1)}2] (2) and chelating [Rh(1)(COD)][B(ArF)4] (3). Despite the widespread use of Rh catalysts for the hydroboration of alkenes, 3 is reported to be the first Rh catalyst for ketone and ketimine hydroboration, with high activity observed at 0.1 mol% loading.
摘要
制备了 2-膦亚膦基-3-甲基-6-三甲基硅基-5-苯基环戊二烯基配体 2-PPh2-3-Me-6-SiMe3-C5H2P（1）的两个 Rh 配合物：双核反式-[{Rh(CO)(Cl)(μ-1)}2]（2）和螯合[Rh(1)(COD)][B(ArF)4]（3）。尽管 Rh 催化剂广泛用于烯烃的硼氢化反应，但据报道，3 是酮和亚胺硼氢化的第一个 Rh 催化剂，在 0.1 mol%负载下观察到高活性。
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