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.
nanoparticles efficiently catalyzed the C–S cross coupling of aryl and alkyl thiols with aryl halides in the absence of ligands on water under mild conditions. A wide range of diaryl sulfides and aryl alkyl sulfides are synthesized in good to excellent yields utilizing this protocol. This procedure is particularly noteworthy given its mild conditions, avoiding the undesired formation of disulfides through
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.