Mild and highly selective palladium-catalyzed monoarylation of ammonia enabled by the use of bulky biarylphosphine ligands and palladacycle precatalysts.
Mild and highly selective palladium-catalyzed monoarylation of ammonia enabled by the use of bulky biarylphosphine ligands and palladacycle precatalysts.
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DOI:
10.1021/ol401612c
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发表时间:
2013-07-19
期刊:
影响因子:
5.2
通讯作者:
Buchwald, Stephen L.
中科院分区:
文献类型:
--
作者:
Cheung, Chi Wai;Surry, David S.;Buchwald, Stephen L.
A method for the palladium-catalyzed arylation of ammonia with a wide range of aryl and heteroaryl halides, including challenging five-membered heterocyclic substrates, is described. Excellent selectivity for monoarylation of ammonia to primary arylamines was achieved under mild conditions or at room temperature by the use of bulky biarylphosphine ligands (L6, L7, and L4) as well as their corresponding aminobiphenyl palladacycle precatalysts (3a, 3b, and 3c). As this process requires neither the use of a glovebox nor high pressures of ammonia, it should be widely applicable.
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影响因子:
5.2
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通讯作者:
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