Dual reactivity of N-heterocyclic carbenes towards copper(II) salts.
نویسندگان
چکیده
Complexes of N-heterocyclic carbenes (NHCs) with copper(II) halogenides are unstable. Upon formation, these complexes decompose to give haloamidinium salts. Contrastingly, O-substituted copper(II) NHC complexes are fairly stable. A series of new five-, six- and seven-membered ring NHC complexes of Cu(OAc)(2) have been synthesised and characterised in the solid state.
منابع مشابه
N-heterocyclic carbene ligands in copper-catalyzed addition of diethylzinc to N-sulfonylimines.
N-Heterocyclic carbenes (NHCs) were generated in-situ from imidazolium and imidazolinium salts by deprotonation of C-2 hydrogen and were used as ligands in the copper-catalyzed addition of diethylzinc to N-sulfonylimines. The copper-NHC complexes were shown to possess an efficient ligand acceleration effect (LAE).
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ورودعنوان ژورنال:
- Dalton transactions
دوره 40 12 شماره
صفحات -
تاریخ انتشار 2011