4-Methyloxazole and 4,4-dimethyl-2-oxazoline were treated with n-butyllithium and trimethyltin chloride to give the corresponding 2-trimethylstannyl derivatives which in the presence of tetrakis(triphenylphosphine)palladium(0) as a catalyst undergo cross-coupling reactions with various aryl and heteroaryl halides to give 2-aryl and 2-heteroaryl oxazoles and oxazolines in high yields.
4-甲基恶唑和4,
4-二甲基-2-
恶唑啉用
正丁基锂和
三甲基氯化锡反应得到相应的2-三甲基甲
锡烷基衍
生物,在
四(三苯基膦)钯(0)催化剂存在下发生交叉偶联与各种芳基和杂芳基卤化物反应,以高产率得到2-芳基和2-杂芳基
恶唑和
恶唑啉。