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- W2079236051 abstract "Abstract Acylphenolato(hydrido)cobalt(III) complexes Co(η2-CO,O)H(PMe3)3 (CO,O=1-carbonyl-2-oxo-5-tert-butyl-cyclohexendiyl; 1-carbonyl-2-oxo-cyclohexendiyl) by reaction with 2-nitrophenol eliminate dihydrogen and are converted to 2-nitrophenolatocobalt(III) compounds. With the former dianionic ligand an intermediate tris(phosphine) compound 1 containing a η1-nitrophenolato group is shown to adopt a meridional configuration in the crystal. In solution a η2-nitrophenolato coordination mode is usually attained after dissociation of one of the trimethylphosphines resulting in cis and trans isomers of bis(phosphine) compounds 2 and 3. bis(Phosphine) complexes 5–7 (cis, trans) were also obtained from Co(η2-CO,O)H(PMe3)3 (CO,O-1-carbonyl-2-oxo-3,4-benzo-cyclohexendiy1; 1-carbonyl-2-oxo-1,2-diphenyl-ethendiyl) and 2-nitronaphthol. No reduction of nitro groups neither by free PMe3 nor by excess CoH complex was observed although the corresponding nitrosonaphtholato complexes 8 and 9 were readily formed upon combining Co(η2-CO,O)H(PMe3)3(CO,O=1-carbonyl-2-oxo-5-tert-butyl-cyclohexendiyl; 1-carbonyl-2-oxo-1,2-diphenyl-ethendiyl) and 2-nitrosonaphthol." @default.
- W2079236051 created "2016-06-24" @default.
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- W2079236051 date "2003-01-01" @default.
- W2079236051 modified "2023-09-27" @default.
- W2079236051 title "Reaction of 2-nitrophenols with high-valent trimethylphosphine complexes of cobalt" @default.
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- W2079236051 doi "https://doi.org/10.1016/s0020-1693(02)01138-6" @default.
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