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Dehydrogenation of iron amido-borane and resaturation of the imino-borane complex.

ABSTRACT: We report on the first isolation and structural characterization of an iron phosphinoimino-borane complex Cp*Fe(η²-H₂B[double bond, length as m-dash]NC₆H₄PPh₂) by dehydrogenation of iron amido-borane precursor Cp*Fe(η¹-H₃B-NHC₆H₄PPh₂). Significantly, regeneration of the amido-borane complex has been realized by protonation of the iron(ii) imino-borane to the amino-borane intermediate [Cp*Fe(η²-H₂B-NHC₆H₄PPh₂)]⁺ followed by hydride transfer. These new iron species are efficient catalysts for 1,2-selective transfer hydrogenation of quinolines with ammonia borane.

SUBMITTER: Zhai X

PROVIDER: S-EPMC8179412 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Dehydrogenation of iron amido-borane and resaturation of the imino-borane complex.

Zhai Xiaofang X Pang Maofu M Feng Lei L Jia Jiong J Tung Chen-Ho CH Wang Wenguang W

Chemical science 20210102 8

We report on the first isolation and structural characterization of an iron phosphinoimino-borane complex Cp*Fe(η2-H2B[double bond, length as m-dash]NC6H4PPh2) by dehydrogenation of iron amido-borane precursor Cp*Fe(η1-H3B-NHC6H4PPh2). Significantly, regeneration of the amido-borane complex has been realized by protonation of the iron(ii) imino-borane to the amino-borane intermediate [Cp ...[more]

PMID: 34164054

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Project description: Not available

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