Synthesis of unsymmetrical N-carboranyl NHCs: directing effect of the carborane anion

Authors :: Steven P. Fisher
Sarah E. Lee
Dan Borchardt
Fook S. Tham
Vincent Lavallo
Matthew Asay
Source :: Chemical Communications. 51:5359-5362
Publication Year :: 2015
Publisher :: Royal Society of Chemistry (RSC), 2015.
Abstract: The syntheses of unsymmetrical N-heterocyclic carbenes (NHCs) that contain a single N-bound icosahedral carborane anion substituent are reported. Both anionic C-2 and doubly deprotonated dianionic C-2/C-5 NHC lithium complexes are isolated. The latter species is formed selectively, which reveals a surprising directing effect conveyed by icosahedral carborane anion substituents.

Subjects :: Chemistry
Icosahedral symmetry
Metals and Alloys
Substituent
chemistry.chemical_element
General Chemistry
Photochemistry
Medicinal chemistry
Catalysis
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Ion
chemistry.chemical_compound
Deprotonation
Materials Chemistry
Ceramics and Composites
Carborane
Lithium

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