Regioselective Preparation of Pyridin-2-yl Ureas from 2-Chloropyridines Catalyzed by Pd(0)
作者:Antonio Abad、Consuelo Agulló、Ana Carmen Cuñat、Cristina Vilanova
DOI:10.1055/s-2005-861844
日期:——
The palladium-catalyzed ureidation reaction of 2-chloropyridines can be regioselectively performed in good yield, with both aryl and aliphatic ureas, using xantphos as the ligand, Pd(OAc)2 as the source of palladium, NaOt-Bu/H2O or NaOH/H2O as the base, and dioxane as the solvent
钯催化的2-氯吡啶与脲类的反应,在良好产率下具有区域选择性,使用xantphos作为配体,Pd(OAc)2作为钯源,NaOt-Bu/H2O或NaOH/H2O作为碱,二氧六环作为溶剂,可同时与芳基和脂肪族脲进行反应。