Spiro-fused six-membered N-heterocyclic carbene: a new scaffold toward unique properties and activities.
نویسندگان
چکیده
A six-membered N-heterocyclic carbene fused with a spiro-scaffold is designed. The new NHC shows stronger σ-donation ability than typical 5-membered NHCs. This property leads to interesting reactivities of this spiro-fused six-membered NHC. For example, the NHC-BF3 Lewis pair complex can be readily prepared by using LiBF4 as the BF3 source, or through a direct bond-reconstruction of the tetrafluoroborate salt NHC·HBF4.
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ورودعنوان ژورنال:
- Chemical communications
دوره 50 54 شماره
صفحات -
تاریخ انتشار 2014