Pd-Catalyzed Asymmetric Allylic Amination of Morita−Baylis−Hillman Adduct Derivatives Using Chiral Diaminophosphine Oxides: DIAPHOXs
作者:Tetsuhiro Nemoto、Takashi Fukuyama、Eri Yamamoto、Shinji Tamura、Tomoaki Fukuda、Takayoshi Matsumoto、Yuichi Akimoto、Yasumasa Hamada
DOI:10.1021/ol0700207
日期:2007.3.1
[reaction: see text] Asymmetric allylic amination of allylic carbonates prepared from racemic Morita-Baylis-Hillman adducts proceeded in the presence of Pd catalyst, chiral diaminophosphine oxide (DIAPHOX), and BSA, affording the corresponding chiral aza-Morita-Baylis-Hillman adduct derivatives in excellent yield with up to 99% ee. The cyclic reaction products could be converted into various synthetically
[反应:见正文]由外消旋的森田-贝利斯-希尔曼加合物制备的烯丙基碳酸酯的不对称烯丙基胺化反应在Pd催化剂,手性二氨基膦氧化物(DIAPHOX)和BSA的存在下进行,得到了相应的手性氮杂-森田-拜利斯-希尔斯曼加合物衍生物,收率高达99%ee,产率极高。环状反应产物可以转化成各种合成有用的化合物,例如手性环状β-氨基酸。