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Cobalt-catalyzed (Z)-selective semihydrogenation of alkynes with molecular hydrogen
Caiyou Chen1, Yi Huang, Zongpeng Zhang
1College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China. xumu@whu.edu.cn xiuqindong@whu.edu.cn.
Chemical Communications (Cambridge, England)
|April 12, 2017
Abstract:
Cobalt-catalyzed highly (Z)-selective semihydrogenation of alkynes using molecular H2 was developed using commercially available and cheap cobalt precursors. A variety of (Z)-alkenes were obtained in moderate to excellent selectivities [(Z)-alkene/(E)-alkene/alkane ratio up to >99 : 1 : 1] and it was found that the readily available ethylenediamine ligand is crucial in determining the selectivity.