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Unexpected coupling of Cp and two RNC ligands at a Mo2(μ-SMe)3 nucleus

Nolwenn Cabon 1 E. Paugam François Pétillon 1 Philippe P. Schollhammer 1 Jean Talarmin 1 K.W. Muir 
1 CEMCA - Chimie, Electrochimie Moléculaires et Chimie Analytique
Abstract : Reaction of the bis-isonitrile complex [Mo2-Cp2(μ-SMe)3(t-BuNC)2] (BF4) (1) with n-BuLi (in hexane) produced the dealkylated derivative [Mo2Cp2(μ-SMe)3-(t-BuNC)(CN)] (2) in quantitative yield. However, upon treatment with either NaOH (suspension) or (Me4N)OH (in MeOH), 1 was converted into a mixture of 2 and the μ-alkylidyne species [Mo2Cp(μ-SMe)3μ-(η5-C5 H4)(t-BuN)-CN(t-Bu)C] (3), in which a deprotonated Cp and both isonitrile ligands of 1 are now linked by new carbon-carbon and carbon-nitrogen bonds.
Keywords : Alkylation Carbon Chemical bonds Complexation Mixtures Molybdenum compounds Nitrogen Protons Reaction kinetics Suspensions (fluids) Bis isonitrile complex Carbon nitrogen bonds Dealkylated derivative Organometallics
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https://hal.univ-brest.fr/hal-01763900
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Submitted on : Wednesday, April 11, 2018 - 2:59:17 PM
Last modification on : Monday, October 11, 2021 - 2:22:08 PM

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Nolwenn Cabon, E. Paugam, François Pétillon, Philippe P. Schollhammer, Jean Talarmin, et al.. Unexpected coupling of Cp and two RNC ligands at a Mo2(μ-SMe)3 nucleus. Organometallics, 2003, 22 (21), pp.4178-4180. ⟨10.1021/om030447r⟩. ⟨hal-01763900⟩

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