CuI/Proline-catalyzed N-Arylation of Nitrogen Heterocycles
CuI/Proline-catalyzed N-Arylation of Nitrogen Heterocycles作者机构:Department of Chemistry University of Science and Technology of China Hefei 230026
出 版 物:《Chinese Chemical Letters》 (中国化学快报(英文版))
年 卷 期:2006年第17卷第3期
页 面:313-316页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金:国家自然科学基金(20332020 20472079)
主 题:Cross coupling reaction CuI N-arylation nitrogen heterocycle proline.
摘 要:Ma's CuI/proline procedure for the catalytic cross coupling between nitrogen heterocycles and aryl halides was markedly improved. The key finding was that K3PO4 was a much better base than K2CO3 for the reaction. With this new reaction condition the cross coupling with aryl iodides could be accomplished in 1,4-dioxane instead of DMSO. This reactin also could be carried out in DMF. Furthermore, the coupling yields under the new conditions are usually higher than in Ma's original methods.