A polystyrene-supported, pyrrolidine-based catalyst depicting very high activity and excellent stereoselectivity in the anti-Mannich reaction of aldehydes and ketones has been developed. The very robust, immobilized catalyst has been successfully used in the implementation of a continuous flow process with short residence times (down to 6 min) for the production of highly enantioenriched anti-type Mannich adducts at the preparative scale.
开发了一种在醛和酮的反曼尼希反应中表现出极高活性和优异立体选择性的聚
苯乙烯负载
吡咯烷基催化剂。这种非常坚固的固定化催化剂已成功应用于连续流动工艺的实施,该工艺具有短停留时间(低至6分钟),用于制备规模上生产高度对映体富集的反式曼尼希加合物。