Water and ethyl diazoacetate were found to be matched components for generating highly reactive nucleophilic oxonium ylide in the presence of a dirhodium acetate catalyst. Simultaneous trapping of the oxonium ylide intermediate with aryl imines gave β-aryl isoserine derivatives with high diastereoselectivity.
发现
水和
重氮乙酸乙酯是在
乙酸二
铑催化剂存在下生成高反应性亲核氧鎓叶立德的匹配组分。同时捕获氧鎓叶立德中间体与芳基
亚胺得到具有高非对映选择性的β-芳基异
丝氨酸衍
生物。