Hydrophosphination of Activated Alkenes by a Cobalt(I) Pincer Complex

被引:13
|
作者
Nolla-Saltiel, Roberto [1 ]
Geer, Ana M. [1 ,2 ]
Taylor, Laurence J. [1 ]
Churchill, Olivia [1 ]
Davies, E. Stephen [1 ]
Lewis, William [3 ]
Blake, Alexander J. [1 ]
Kays, Deborah L. [1 ]
机构
[1] Univ Nottingham, Sch Chem, Univ Pk, Nottingham NG7 2RD, England
[2] Univ Zaragoza, CSIC, Inst Sintesis Quim & Catalisis Homogenea ISQCH, Dept Quim Inorgan, Pedro Cerbuna 12, Zaragoza 50009, Spain
[3] Univ Sydney, Sch Chem, F11,Eastern Ave, Sydney, NSW 2006, Australia
基金
英国工程与自然科学研究理事会;
关键词
Hydrophosphination; Activated Alkenes; First-Row Transition Metal; Pincer Complexes; Homogeneous Catalysis; CATALYZED ACRYLONITRILE HYDROPHOSPHINATION; P-H BOND; SELECTIVE HYDROPHOSPHINATION; OLEFIN INSERTION; METAL-COMPLEXES; LEWIS ACIDITY; IRON; PHOSPHINES; ALKYNES; MARKOVNIKOV;
D O I
10.1002/adsc.202000514
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Herein we report the synthesis of three heteroleptic first-row transition metal(II) complexes containing carbazolido NNN pincer ligands and conversion to the corresponding metal(I)-carbonyl complexes via a reductive carbonylation route. These complexes are precatalysts for the hydrophosphination of activated alkenes, affording a cobalt-catalysed hydrophosphination process that solely and selectively yields the beta addition (anti-Markovnikov) product. The scope of this transformation has been investigated using a variety of activated alkenes. Isolation and characterisation of substrate-coordinated intermediates reveal available coordination sites, which provide insight into the proposed catalytic cycle.
引用
收藏
页码:3148 / 3157
页数:10
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