Dr. Guoqi Zhang, Dr. Brian L. Scott and Dr. Susan K. Hanson Mild and Homogeneous Cobalt-Catalyzed Hydrogenation of CC, CO, and CN Bonds Angewandte Chemie International Edition 51
A cationic cobalt(II)–alkyl complex is an effective precatalyst for hydrogenation of alkenes, aldehydes, ketones, and imines under mild conditions (1–4 atm H2; see scheme). The catalyst shows a high functional-group tolerance across a broad range of substrates. Experiments suggest that the active catalytic species is a cobalt(II)–hydride complex.
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