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Polynuclear Copper(I) Complexes with Chelating Bis- and Tris-N-Heterocyclic Carbene Ligands: Catalytic Activity in Nitrene and Carbene Transfer Reactions

✍ Scribed by Cristina Tubaro; Andrea Biffis; Riccardo Gava; Elena Scattolin; Andrea Volpe; Marino Basato; M. Mar Díaz-Requejo; Pedro J. Perez

Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
303 KB
Volume
2012
Category
Article
ISSN
1434-193X

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✦ Synopsis

Abstract

Di‐ and trinuclear complexes of copper(I) bearing bis‐ or tris‐N‐heterocyclic carbene ligands have been prepared and evaluated as catalysts in nitrene transfer reactions from PhI=NTs to unsaturated and saturated substrates (olefin aziridination and C–H bond amidation) and carbene transfer reactions from diazo compounds to olefins. The complexes exhibited moderate‐to‐high catalytic activity in both processes. The tosylamidation of C–H bonds, previously unreported with a NHC‐containing copper catalyst, was promoted by the dinuclear complexes.

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Mononuclear Rhodium(I) Complexes with Chelating N-Heterocyclic Carbene Ligands − Catalytic Activity for Intramolecular Hydroamination
✍ Suzanne Burling; Leslie D. Field; Hsiu L. Li; Barbara A. Messerle; Peter Turner 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB 👁 1 views

## Abstract The mononuclear cationic Rh^I^ complexes [Rh(cod)(mdd)]^+^X^−^ and [Rh(CO)~2~(mdd)]^+^X^−^ (X = BPh~4~, PF~6~) containing the chelating bidentate __N__‐heterocyclic carbene ligand 1,1′‐methylene‐3,3′‐dimethyldiimidazoline‐2,2′‐diylidene (mdd) have been synthesised and spectroscopically