Synthesis of unsymmetrical N-carboranyl NHCs: directing effect of the carborane anion.
نویسندگان
چکیده
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.
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ورودعنوان ژورنال:
- Chemical communications
دوره 51 25 شماره
صفحات -
تاریخ انتشار 2015