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Anion Controlled Stereodivergent Semi‐Hydrogenation of Alkynes using Water as Hydrogen Source
Author(s) -
Li Kangkui,
Yang Chunhui,
Chen Jingchao,
Pan Chunxiang,
Fan Ruifeng,
Zhou Yongyun,
Luo Yang,
Yang Dajian,
Fan Baomin
Publication year - 2021
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.202000716
Subject(s) - chemistry , nickel , stereoselectivity , hydrogen , catalysis , salt (chemistry) , zinc , combinatorial chemistry , ion , reaction conditions , metal , organic chemistry
An anion controlled stereodivergent semi‐hydrogenation of alkynes is reported. The reactions are catalyzed by the low‐cost and stable nickel(II) salts, using water as environmental friendly hydrogen source with zinc powder as metal reductant. Interestingly, the stereoselectivity of the reaction is well controlled by the anion of the nickel(II) salt. The present methodology allowed a low‐cost and convenient preparation of trans ‐ and cis ‐alkenes under mild conditions. The reaction mechanism is proposed with water as the hydrogen donor on the basis of the control experiments.