Processes of enantioselectively forming an aminoxy compound and an 1,2-oxazine compound
申请人:Zhong Guofu
公开号:US08680335B2
公开(公告)日:2014-03-25
Disclosed is a process of enantioselectively forming an aminoxy compound of Formula (3)
In formula (3) R1 is one of an aliphatic group and an alicyclic group. R2 is one of hydrogen, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group and an arylalicyclic group. R3 is one of hydrogen, halogen, hydroxyl, and an aliphatic group with a main chain having 1 to about 10 carbon atoms. The respective aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic groups of R1, R2, and R3 comprise 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. The process includes contacting a carbonyl compound of Formula (1)
and a nitroso compound of Formula (2)
in the presence of a chiral catalyst. The chiral catalyst is a compound of Formula (IX)
本发明揭示了一种手性选择性地形成公式(3)的氨氧化合物的方法。在公式(3)中,R1是脂肪族基团和螺环基团之一。R2是氢、脂肪族基团、螺环基团、芳香基团、芳基脂肪族基团和芳基螺环基团之一。R3是氢、卤素、羟基和具有1到约10个碳原子的主链的脂肪族基团。 R1、R2和R3的各自的脂肪族、螺环、芳香、芳基脂肪族或芳基螺环基团独立地包含0到约3个异原子,所述异原子从N、O、S、Se和Si的群组中选择。该方法包括在手性催化剂的存在下接触公式(1)的羰基化合物和公式(2)的亚硝基化合物。手性催化剂是公式(IX)的化合物。