Heteroaryl Ethers by Oxidative Palladium Catalysis of Pyridotriazol-1-yloxy Pyrimidines with Arylboronic Acids
作者:Sujata Bardhan、Sumrit Wacharasindhu、Zhao-Kui Wan、Tarek S. Mansour
DOI:10.1021/ol900592b
日期:2009.6.18
The oxidativepalladium-catalyzed cross-coupling of pyrimidines containing pyridotriazol-1-yloxy (OPt) as either a urea or an amide functional group with arylboronic acids in the presence of Cs2CO3 in DME containing 0.6−1.0% H2O is described for the preparation of heteroaryl ethers. The bromo substitution in the case of 3-(5-bromo-pyrimidin-2-yloxy)-3H-[1,2,3]triazolo[4,5-b]pyridine 1 could serve as
在含有0.6-1.0%H 2 O的DME中,在Cs 2 CO 3存在下,含吡啶三唑-1-基氧基(O Pt)作为脲或酰胺官能团的嘧啶与芳基硼酸的氧化钯催化交叉偶联。描述了制备杂芳基醚的方法。在3-(5-溴-嘧啶-2-基氧基)-3 H- [1,2,3]三唑并[4,5- b ]吡啶1的情况下,溴取代可作为进一步处理的手段,例如作为Suzuki偶联剂,用于连接各种芳基。