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Asymmetric Transfer Hydrogenation of Diaryl Ketones with Ethanol Catalyzed by Chiral NCP Pincer Iridium Complexes
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作者 Lu Qian Xixia Tang +2 位作者 Yulei wang Guixia Liu Zheng Huang 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2022年第10期1131-1136,共6页
The use of a chiral(NCP)Ir complex as the precatalyst allowed for the discovery of asymmetric transfer hydrogenation of diaryl ketones with ethanol as the hydrogen source and solvent.This reaction was applicable to va... The use of a chiral(NCP)Ir complex as the precatalyst allowed for the discovery of asymmetric transfer hydrogenation of diaryl ketones with ethanol as the hydrogen source and solvent.This reaction was applicable to various ortho-substituted diaryl keontes,affording benzhydrols in good yields and enantioselectivities.This protocol could be carried out in a gram scale under mild reaction conditions.The utility of the catalytic system was highlighted by the synthesis of the key precursor of(S)-neobenodine. 展开更多
关键词 Asymmetric transfer hydrogenation Benzhydrols Diaryl ketones ETHANOL IRIDIUM
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