A sequential, organocatalysed asymmetric reaction to access chiral 1,2-oxazines from achiral ketone starting materials is reported, which proceeds in moderate to good yields and excellent enantioselectivity.
报告采用有机催化不对称反应顺序,从非手性
酮类起始材料中获得手性 1,2-oxazines ,该反应以中等至良好的产率和出色的对映选择性进行。