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Heterogeneous Olefin Hydrogenation Enabled by a Highly‐Reduced Nickel(−II) Catalyst Precursor
Author(s) -
Maier Thomas M.,
Sandl Sebastian,
Melzl Peter,
Zweck Josef,
Jacobi von Wangelin Axel,
Wolf Robert
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201905537
Subject(s) - catalysis , olefin fiber , nickel , steric effects , halide , chemistry , diene , organic chemistry , natural rubber
The hydrogenation of olefins, styrenes, enoates, imines, and sterically hindered tri‐substituted olefins was accomplished using the pre‐catalyst dilithiumbis(cycloocta‐1,5‐diene)nickelate(−II) ( 1 ). The mild conditions tolerate hydroxyl, halide, ester, and lactone functionalities. Mechanistic studies, including reaction progress analyses, poisoning experiments, and multinuclear NMR monitoring, indicate that a heterotopic (nickel nanoparticle) catalyst is in operation.