Metal free and selective activation of one C-F bond in a bound CF3 group
Metal free and selective activation of one C-F bond in a bound CF3 group
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DOI:
10.1039/c3cc38669d
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发表时间:
2013-01-01
影响因子:
4.9
通讯作者:
Stalke, Dietmar
中科院分区:
文献类型:
--
作者:
Azhakar, Ramachandran;Roesky, Herbert W.;Stalke, Dietmar
The first metal free selective C-F bond activation of a CF3 group was observed with N-heterocyclic silylenes [PhC(NtBu)(2)SiCl] (1) and [CH{(C=CH2)(CMe)(2,6-iPr(2)C(6)H(3)N)(2)}Si] (2) with PhN=C(CF3)(2). The reaction proceeds in a 1 : 1 molar ratio to yield the mono C-F bond activated products 3 and 4 with each containing a CF2 group. Both the reactions proceed through an unprecedented selective activation of one of the C-F bonds rather than forming the [1+2] cycloaddition product containing the three-membered SiNC rings.