Intermolecular C-H bond activation promoted by a titanium alkylidyne
Intermolecular C-H bond activation promoted by a titanium alkylidyne
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DOI:
10.1021/ja0556934
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发表时间:
2005-11-23
影响因子:
15
通讯作者:
Mindiola, DJ
中科院分区:
文献类型:
--
作者:
Bailey, BC;Fan, HJ;Mindiola, DJ
The transient titanium alkylidyne complex (PNP)Ti⋮CtBu (PNP =N-[2-P(CHMe2)2-4-methylphenyl]2-), prepared from α-hydrogen abstraction of the corresponding alkylidene−alkyl species (PNP)TiCHtBu(CH2tBu), can readily undergo intermolecular 1,2-addition of C−H bonds of benzene and SiMe4. Synthesis and reactivity, isotopic labeling, kinetics, and theoretical studies strongly favor an alkylidyne pathway and the α-H abstraction step to be the rate-determining step.