Cyclic (amino)(imino)carbene complexes by borylene transfer to isocyanides.
نویسندگان
چکیده
Here we report the facile formation of boron-containing cyclic (amino)(imino)carbene complexes by reaction of a chromium borylene complex [(OC)(5)Cr=B=N(SiMe(3))(2)] with isocyanides.
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The first example of the use of an N-heterocyclic carbene (NHC) as an organocatalyst for the activation of isocyanides was demonstrated. On the basis of previous reports on the interaction between NHCs and isocyanides, we developed a catalytic cycle involving transient imidoyl intermediate. The reaction of ketones with isocyanides produced the corresponding enaminones with high efficiency. Cont...
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ورودعنوان ژورنال:
- Chemical communications
دوره 49 17 شماره
صفحات -
تاریخ انتشار 2013