One-Pot Negishi Cross-Coupling Reactions of In Situ Generated Zinc Reagents with Aryl Chlorides, Bromides, and Triflates
作者:Shohei Sase、Milica Jaric、Albrecht Metzger、Vladimir Malakhov、Paul Knochel
DOI:10.1021/jo801063c
日期:2008.9.19
heteroaryl, alkyl, or benzylic polyfunctional zinc reagents obtained by the addition of zinc and LiCl to the corresponding organic iodides undergo smooth Pd(0)-catalyzed cross-coupling reactions with aryl bromides, chlorides, and triflates in the presence of PEPPSI as a catalyst. This procedure avoids the manipulation of water and air-sensitive organozinc reagents and produces cross-coupling products in high
通过将锌和LiCl添加到相应的有机碘中获得的原位生成的芳基,杂芳基,烷基或苄基多官能锌试剂,在存在下与芳基溴化物,氯化物和三氟甲磺酸酯进行平滑的Pd(0)催化的交叉偶联反应。 PEPPSI作为催化剂。该程序避免了对水和空气敏感的有机锌试剂的操作,并以高收率生产了交叉偶联产物。