Synthesis of Polycyclic Imines by Palladium-Catalyzed Domino Cyclization of Di- and Trienyl Ketone<i>O</i>-Pentafluorobenzoyloximes
作者:Shazia Zaman、Mitsuru Kitamura、Koichi Narasaka
DOI:10.1246/bcsj.76.1055
日期:2003.5
Various cyclic imines, such as spiro imines and a fused bicyclic imine, are synthesized from dienyl and trienyl ketone O-pentafluorobenzoyloximes by the domino amino-Heck reaction. Treatment of the oximes with a catalytic amount of Pd(PPh3)4 and triethylamine gives polycyclic imines in high yields via alkylideneaminopalladium(II) intermediates generated in situ by the oxidative addition of the oximes
各种环状亚胺,例如螺亚胺和稠合双环亚胺,是由二烯基和三烯基酮 O-五氟苯甲酰肟通过多米诺氨基-Heck 反应合成的。用催化量的 Pd(PPh3)4 和三乙胺处理肟,通过将肟氧化加成到 Pd(0) 络合物中原位生成的亚烷基氨基钯 (II) 中间体,以高产率得到多环亚胺。