Palladium-catalyzed cross-coupling reaction of 2- and/or 5-substituted 4,6-dichloropyrimidines with arylboronic acids
作者:S. Tumkevicius、J. Dodonova、I. Baskirova、A. Voitechovicius
DOI:10.1002/jhet.184
日期:2009.9
The Suzuki-Miyaura reaction of some 4,6-dichloropyrimidines bearing methylthio-, methyl-, amino-, cyano-, formyl-, and nitro groups in positions 2 and/or 5 of the pyrimidine ring with arylboronic acids has been investigated. Influence of palladium catalyst, ligand, base, and solvent on the reaction outcome was studied. The reaction was found to give the corresponding 4,6-diarylpyrimidines in reasonable
已经研究了在嘧啶环的2和/或5位上带有甲硫基,甲基,氨基,氰基,甲酰基和硝基的一些4,6-二氯嘧啶与芳基硼酸的Suzuki-Miyaura反应。研究了钯催化剂,配体,碱和溶剂对反应结果的影响。发现该反应使用Pd(OAc)2 / PPh 3 / K 3 PO 4或Pd(PPh 3)2 Cl 2 / K 3 PO 4作为催化剂体系以合理的产率得到了相应的4,6-二芳基嘧啶。J.杂环化学,(2009)。