Mono and dimetallic pyrene-imidazolylidene complexes of iridium(III) for the deuteration of organic substrates and the C-C coupling of alcohols

Ibanez S.; Poyatos M.; Peris E.

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Mono and dimetallic pyrene-imidazolylidene complexes of iridium(III) for the deuteration of organic substrates and the C-C coupling of alcohols

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Three different Ir(III) complexes with pyrene-containing N-heterocyclic carbenes have been prepared and characterized. Two complexes contain a monodentate pyrene-imidazolylidene ligand, and have the formulae IrCp*Cl-2(pyrene-NHC) and IrCp*(CO3)(pyrene-NHC). The third complex is a dimetallic complex with a pyrene-di-imidazolylidene bridging ligand, with the formula {IrCp*(CO3)}(2)(mu-pyrene-di-NHC). The catalytic activity of the three complexes was tested in the H/D exchange of organic substrates, and in the beta-alkylation of 1-phenylethanol with primary alcohols. In the deuteration of organic substrates, the carbonate complexes are active even in the absence of additives. The dimetallic complex is the most active one in the catalytic coupling of alcohols, a result that may be interpreted as a consequence of the co-operativity between the two metal centres.

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《Dalton transactions: An international journal of inorganic chemistry》 |2016年第36期|14154-14159|共6页
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Ibanez S.; Poyatos M.; Peris E.;
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Univ Jaume 1, Inst Adv Mat INAM, Av Vicente Sos Baynat S-N, Castellon de La Plana 12071, Spain;

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正文语种英语
中图分类化学;无机化学;
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Mono and dimetallic pyrene-imidazolylidene complexes of iridium(III) for the deuteration of organic substrates and the C-C coupling of alcohols

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