Palladium-catalyzed amination of aryl chlorides and bromides with ammonium salts.
Palladium-catalyzed amination of aryl chlorides and bromides with ammonium salts.
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DOI:
10.1021/ol501739g
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发表时间:
2014-09-05
期刊:
影响因子:
5.2
通讯作者:
Hartwig JF
中科院分区:
文献类型:
--
作者:
Green RA;Hartwig JF
We report the palladium-catalyzed coupling of aryl halides with ammonia and gaseous amines as their ammonium salts. The coupling of aryl chlorides and ortho-substituted aryl bromides with ammonium sulfate forms anilines with higher selectivity for the primary arylamine over the diarylamine than couplings with ammonia in dioxane. The resting state for the reactions of aryl chlorides is different from the resting state for the reactions of aryl bromides, and this change in resting states is proposed to account for a difference in selectivities for reactions of the two haloarenes.
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