Regioselective formation of alpha-vinylpyrroles from the ruthenium-catalyzed coupling reaction of pyrroles and terminal alkynes involving C-H bond activation.
Regioselective formation of alpha-vinylpyrroles from the ruthenium-catalyzed coupling reaction of pyrroles and terminal alkynes involving C-H bond activation.
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DOI:
10.1021/jo100269y
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发表时间:
2010-05-07
影响因子:
3.6
通讯作者:
Yi, Chae S.
中科院分区:
文献类型:
--
作者:
Gao, Ruili;Yi, Chae S.
The cationic ruthenium catalyst, Ru3(CO)12/NH4PF6, was found to be highly effective for the intermolecular coupling reaction of pyrroles and terminal alkynes to give gem-selective α-vinylpyrroles. The carbon isotope effect on the α-pyrrole carbon and the Hammett correlation from a series of para-substituted N-arylpyrroles (ρ = −0.90) indicate a rate-limiting C–C bond formation step of the coupling reaction.
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