Structure determination of the cobalt(III) complex catalyst for enantioselective borohydride reduction

Tatsuyuki Tsubo; Minako Yokomori; Hsiu Hui Chen; Keiko Komori-Orisaku; Satoshi Kikuchi; Yoshihiro Koide; Tohru Yamada

doi:10.1246/cl.2012.783

Structure determination of the cobalt(III) complex catalyst for enantioselective borohydride reduction

Tatsuyuki Tsubo, Minako Yokomori, Hsiu Hui Chen, Keiko Komori-Orisaku, Satoshi Kikuchi, Yoshihiro Koide, Tohru Yamada

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The structure of the reactie cobalt complex catalyst for the enantioselective borohydride reduction of ketones was completely determined by ESI-MS, NMR, and X-ray analyses. It was confirmed that as an axial ligand, 1-chlorovinyl group derived from 1, 1, 1-trichloroethane was attached. Based on the X-ray analysis, two rotamers on cobaltcarbon bond were found in one unit. The obtained 1-chlorovinylcobalt(III) complex was examined for the enantioselective reduction to afford the reduced product in high yield with a high enantioselectivity.

Original language	English
Pages (from-to)	783-785
Number of pages	3
Journal	Chemistry Letters
Volume	41
Issue number	8
DOIs	https://doi.org/10.1246/cl.2012.783
Publication status	Published - 2012

ASJC Scopus subject areas

Chemistry(all)

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abstract = "The structure of the reactie cobalt complex catalyst for the enantioselective borohydride reduction of ketones was completely determined by ESI-MS, NMR, and X-ray analyses. It was confirmed that as an axial ligand, 1-chlorovinyl group derived from 1, 1, 1-trichloroethane was attached. Based on the X-ray analysis, two rotamers on cobaltcarbon bond were found in one unit. The obtained 1-chlorovinylcobalt(III) complex was examined for the enantioselective reduction to afford the reduced product in high yield with a high enantioselectivity.",

author = "Tatsuyuki Tsubo and Minako Yokomori and Chen, {Hsiu Hui} and Keiko Komori-Orisaku and Satoshi Kikuchi and Yoshihiro Koide and Tohru Yamada",

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doi = "10.1246/cl.2012.783",

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T1 - Structure determination of the cobalt(III) complex catalyst for enantioselective borohydride reduction

AU - Tsubo, Tatsuyuki

AU - Yokomori, Minako

AU - Chen, Hsiu Hui

AU - Komori-Orisaku, Keiko

AU - Kikuchi, Satoshi

AU - Koide, Yoshihiro

AU - Yamada, Tohru

PY - 2012

Y1 - 2012

N2 - The structure of the reactie cobalt complex catalyst for the enantioselective borohydride reduction of ketones was completely determined by ESI-MS, NMR, and X-ray analyses. It was confirmed that as an axial ligand, 1-chlorovinyl group derived from 1, 1, 1-trichloroethane was attached. Based on the X-ray analysis, two rotamers on cobaltcarbon bond were found in one unit. The obtained 1-chlorovinylcobalt(III) complex was examined for the enantioselective reduction to afford the reduced product in high yield with a high enantioselectivity.

AB - The structure of the reactie cobalt complex catalyst for the enantioselective borohydride reduction of ketones was completely determined by ESI-MS, NMR, and X-ray analyses. It was confirmed that as an axial ligand, 1-chlorovinyl group derived from 1, 1, 1-trichloroethane was attached. Based on the X-ray analysis, two rotamers on cobaltcarbon bond were found in one unit. The obtained 1-chlorovinylcobalt(III) complex was examined for the enantioselective reduction to afford the reduced product in high yield with a high enantioselectivity.

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Structure determination of the cobalt(III) complex catalyst for enantioselective borohydride reduction

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