Unusual Reactivity of a Nickel N‐Heterocyclic Carbene Complex:  tert ‐Butyl Group Cleavage and Silicone Grease Activation | Zendy

Caddick Stephen | Zendy; Cloke F. Geoffrey N. | Zendy; Hitchcock Peter B. | Zendy; de K. Lewis Alexandra K. | Zendy

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Unusual Reactivity of a Nickel N‐Heterocyclic Carbene Complex: tert ‐Butyl Group Cleavage and Silicone Grease Activation

Author(s) -

Caddick Stephen,

Cloke F. Geoffrey N.,

Hitchcock Peter B.,

de K. Lewis Alexandra K.

Publication year - 2004

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200460955

Subject(s) - carbene , dimer , silicone , siloxane , chemistry , grease , nickel , cleavage (geology) , polymer chemistry , silicone oil , reactivity (psychology) , medicinal chemistry , organic chemistry , materials science , catalysis , composite material , medicine , alternative medicine , pathology , fracture (geology) , polymer

Reaction lubrication? The reaction between [Ni(1,5‐cod) 2 ] (cod=cyclooctadiene) and 1,3‐bis‐ tert ‐butylimidazol‐2‐ylidene in the presence of silicone grease affords the siloxane bridged dimer [{Ni[C(N t BuCH) 2 ][O(Me 2 SiOSiMe 2 )‐μ‐O]} 2 ]. In a greaseless apparatus, the same reaction yields the dimer 1 (see structure), via two structurally characterized intermediates.

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