Journal
ACS CATALYSIS
Volume 6, Issue 1, Pages 258-261Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.5b02324
Keywords
nickel; pincer ligands; Kumada coupling; Suzuki-Miyaura coupling secondary alkyl halide
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Funding
- Swiss National Science Foundation [200020_144393/1]
- Swiss National Science Foundation (SNF) [200020_144393] Funding Source: Swiss National Science Foundation (SNF)
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Replacement of a dimethyl amino group of the amidobis(amine) nickel(II) pincer complex (1), [((N2N)-N-Me)-Ni-Cl], by a pyrrolidino group resulted in a new nickel(II) pincer complex (2), [((PNNN)-N-yr-N-Me)Ni-Cl]. Complex 2 is an efficient catalyst for Kumada and Suzuki-Miyaura cross-coupling of nonactivated secondary alkyl halides, while complex 1 is largely inactive. The significant activity difference is tentatively attributed to a minimal structural difference, which leads to a more hemilabile ligand.
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