Asymmetric Allylic Amination in Water Catalyzed by an Amphiphilic Resin-Supported Chiral Palladium Complex
作者:Yasuhiro Uozumi、Hirotaka Tanaka、Kazutaka Shibatomi
DOI:10.1021/ol036264i
日期:2004.1.1
[reaction: see text] Catalytic asymmetric allylic amination of cycloalkenyl carbonates (methyl cyclohexen-2-yl carbonate, methyl cyclohepten-2-yl carbonate, methyl 5-methoxycarbonylcyclohexen-2-yl carbonate, methyl cyclohexenyl carbonate, tert-butyl 5-methoxycarbonyloxy-1,2,5,6-tetrahydropyridinedicarboxylate) with dibenzylamines ((C6H5CH2)2NH, (C6H5CH2)(4-CH3OC6H4CH2)NH, (4-CH3OC6H4CH2)2NH) was achieved
[反应:参见正文]碳酸环烯基酯的碳酸酯催化不对称烯丙基胺化(碳酸甲基环己烯基-2-酯,碳酸甲基环庚酯-2-基酯,碳酸5-甲氧基羰基环己烯-2-基酯,碳酸甲基环己烯基酯,5-甲氧基羰基叔丁基叔丁基通过在二甲基胺的钯络合物的非均相条件下在水中获得与1,2,5,6-四氢吡啶二甲酸-1,2,5,6-四氢吡啶二羧酸酯) (3R,9aS)-3- [2-(二苯基膦基)苯基] -2-苯基四氢-1H-咪唑并[1,5-a]吲哚-1-酮锚定在聚苯乙烯-聚(乙二醇)共聚物树脂上具有高对映体选择性(90-98%ee)的相应环烯基胺。