作者:Guixia Liu、Xiyan Lu
DOI:10.1016/j.tet.2008.05.056
日期:2008.7
A palladium(II)-catalyzed intramolecular addition of arylboronic acids to ketones was developed. Compared to Pd(OAc)2 catalysis system, cationic palladium complex with dppp as the ligand has higher catalytic activity and efficiency for wider scope of substrates. From this reaction, the normal addition product or the dehydrated product could be selectively furnished as controlled by additives. Highly
开发了钯(II)催化的芳基硼酸分子内加成酮。与Pd(OAc)2催化体系相比,以dppp为配体的阳离子钯配合物具有更高的催化活性和效率,可用于更广泛的底物范围。通过该反应,可以根据添加剂的控制选择性地提供正常的加成产物或脱水产物。通过使用手性阳离子钯络合物作为催化剂,可以获得高旋光性的环状叔醇(至多96%ee)。