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低价烯酰胺铁配合物在无碱条件下用于苯乙酮的不对称转移氢化。

Low-valent ene-amido iron complexes for the asymmetric transfer hydrogenation of acetophenone without base.

机构信息

Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6.

出版信息

J Am Chem Soc. 2011 Jun 29;133(25):9662-5. doi: 10.1021/ja202375y. Epub 2011 Jun 7.

DOI:10.1021/ja202375y
PMID:21627152
Abstract

Examination of the role of base in the activation of our previously reported iron(II) complexes having the general formula [Fe(CO)(Br)(PNNP)][BPh(4)] revealed a five-coordinate iron(II) complex in which the tetradentate PNNP ligand had been doubly deprotonated. The new iron(II) complexes were used in the transfer hydrogenation of acetophenone in isopropanol in the absence of added base, and certain analogues showed catalytic activity.

摘要

考察了我们之前报道的具有通式[Fe(CO)(Br)(PNNP)][BPh(4)]的铁(II)配合物中碱的作用，结果表明其中的五配位铁(II)配合物中，四齿配体 PNNP 已被双重去质子化。新的铁(II)配合物被用于在无外加碱的情况下异丙醇中苯乙酮的转移氢化，某些类似物显示出催化活性。

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