Synthesis of 4-Aryl and Unsymmetrical 4,6-Diarylpyrimidines by the Suzuki-Miyaura Cross-Coupling Reaction
摘要:
A two-step procedure for the synthesis of 4-arylpyrimidines from inexpensive 4,6-dichloropyrimidine via a Suzuki-Miyaura/hydrodechlorination reaction sequence is described. The reaction resulted in the predominant formation of mono-arylated product. The cross-coupling of 4-chloro-6-substituted pyrimidines with various aryl/heteroarylboronic acids also furnished 4,6-disubstituted pyrimidines in acceptable yields.
An efficient and convenient multicomponent reaction for the synthesis of 2-methyl-4,6-diarylpyrimidine under solvent-free conditions
作者:Liangce Rong、Hongxia Han、Hong Jiang、Yisi Dai、Mengjie Zhuang、Minxiang Cao、Shujiang Tu
DOI:10.1002/jhet.167
日期:2009.9
An efficient and convenient method for the preparation of 2-methyl-4,6-diarylpyrimidine derivatives by the multicomponentreactions of aromatic aldehydes, aromatic ketones, and acetamidine hydrochloride in the presence of sodium hydroxide undersolvent-freeconditions was reported. This method has the advantages of excellent yields, mild reactionconditions, easy workup, and environmentally friendly