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
KO Bu-mediated transition-metal-free synthesis of pyrimidines by selective three-component coupling reactions: A mechanistic insight
作者:Fei Wang、Zhiwen Deng、Yawen Wang、Fanshu Yuan、Xing Zhang、Guo-Ping Lu、Ninghua Fu、Yamei Lin
DOI:10.1016/j.tet.2022.132985
日期:2022.9
A KOtBu-mediated strategy for pyrimidine synthesis via selective three-componentcouplingreactions has been disclosed. This chemistry, in which a series of pyrimidines (20 examples) can be prepared with moderate to excellent yields, has high potential for large-scale operation owing to its metal-free conditions, atom and step economy. According to mechanistic studies, oxidative species can be generated
已经公开了一种通过选择性三组分偶联反应合成嘧啶的 KO t Bu 介导的策略。这种化学可以以中等至优异的产率制备一系列嘧啶(20 个实例),由于其无金属条件、原子和步骤经济性,具有大规模操作的巨大潜力。根据机理研究,在空气存在下,KO t Bu 或甲苯可以生成氧化物质,这可以引发醇氧化成醛(或酮)。同时,KO t Bu 不仅促进了缩合环化过程,还引发了二氢嘧啶环的脱氢。
Copper-catalyzed three-component synthesis of pyrimidines from amidines and alcohols
作者:Tianchao Shi、Feng Qin、Qian Li、Wu Zhang
DOI:10.1039/c8ob02694g
日期:——
An efficient copper-catalyzed one-pot three-component reaction of amidines, primary alcohols and secondary alcohols has been developed to synthesize multisubstituted pyrimidines. The significant merits of this method involve high atom efficiency, good functional group tolerance and operational simplicity.