期刊
ORGANOMETALLICS
卷 30, 期 21, 页码 5859-5866出版社
AMER CHEMICAL SOC
DOI: 10.1021/om200689r
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资金
- Deutsche Forschungsgemeinschaft [IRTG 1444, SFB 858]
- GSC-MS
The N-alkyphosphine-substituted benzimidazoles 5 (R = methylenedicyclohexylphosphine), 7 (R = ethylene-di(tBu)phosphine), and 8 (R = ethylenedicyclohexylphosphine) have been prepared. The benzimidazoles react with [RhCl(COE)(2)](2) in the presence of tertiary phosphines under formal tautomerization of the benzimidazole and chelating coordination of the resulting bidentate NH,NR-NHC/phosphine ligand ((PC)-C-boolean AND) to give complexes [RhCl((PC)-C-boolean AND)PR3] [6]-[9]. Depending on the steric demand of the PR3, the phosphines of the (PC)-C-boolean AND ligands, and on the spacer linking the benzimidazole ring nitrogen atom to the alkylphosphine, complexes with cis-P,P and trans-P, P geometry have been obtained and crystallographically characterized.
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