CuI-Catalyzed Coupling Reactions of Aryl Iodides and Bromides with Thiols Promoted by Amino Acid Ligands
作者:Lei Liu、Qing-Xiang Guo、Wei Deng、Yan Zou、Ye-Feng Wang
DOI:10.1055/s-2004-825584
日期:——
Novel mild conditions for the CuI-catalyzed coupling reactions of aryl iodides and bromides with aliphatic and aromatic thiols using amino acids as the ligand are reported.
A General, Efficient, and Functional-Group-Tolerant Catalyst System for the Palladium-Catalyzed Thioetherification of Aryl Bromides and Iodides
作者:Manuel A. Fernández-Rodríguez、John F. Hartwig
DOI:10.1021/jo802594d
日期:2009.2.20
reaction of aryl bromides and iodides with aliphatic and aromatic thiols catalyzed by palladium complexes of the bisphosphine ligand CyPF-tBu (1) is reported. Reactions occur in excellent yields, broad scope, high tolerance of functional groups, and with turnover numbers that exceed those of previous catalysts by 2 or 3 orders of magnitude. These couplings of bromo- and iodoarenes are more efficient than
报道了由双膦配体 CyPF- t Bu ( 1 )的钯配合物催化的芳基溴化物和碘化物与脂肪族和芳香族硫醇的交叉偶联反应。反应以优异的产率、广泛的范围、高的官能团耐受性以及比以前催化剂高出 2 或 3 个数量级的周转数发生。这些溴代芳烃和碘代芳烃的偶联比氯芳烃的相应反应更有效,并且可以在较少的催化剂负载和/或更温和的反应条件下进行。因此,以前在芳基氯偶联中报道的范围和官能团耐受性的限制现在得到了克服。
Highly Efficient and Functional-Group-Tolerant Catalysts for the Palladium-Catalyzed Coupling of Aryl Chlorides with Thiols
作者:Manuel A. Fernández-Rodríguez、Qilong Shen、John F. Hartwig
DOI:10.1002/chem.200600949
日期:2006.10.16
The cross-coupling reaction of arylchlorides with aliphatic and aromatic thiols catalyzed by palladium complexes of the strongly binding bisphosphine CyPF-tBu ligand (1) is reported. Most of the reactions catalyzed by complexes of ligand 1 occur with turnover numbers that exceed those of previous catalysts by two orders of magnitude. The reactions occur with excellent yields, broad scope and high
The reaction of 1- and 2-naphthols 1 and 2 with a variety of thiols 3 in the presence of trifluoromethanesulfonic acid afforded naphthyl alkyl and aryl sulfides 4 and 5, respectively, in good yields. Similarly naphthyl bis(alkyl) or bis(aryl) sulfides 10-13 were prepared from the corresponding dihydroynaphthalenes 6-9.