Design of Chiral <i>N</i>-Triflyl Phosphoramide as a Strong Chiral Brønsted Acid and Its Application to Asymmetric Diels−Alder Reaction
作者:Daisuke Nakashima、Hisashi Yamamoto
DOI:10.1021/ja062508t
日期:2006.8.1
A highly reactive and acidic chiral Brønsted acid catalyst, chiral N-triflyl phosphoramide, was developed. Highly enantioselective Diels-Alder reaction of alpha,beta-unsaturated ketone with silyloxydiene was demonstrated using this chiral Brønsted acid catalyst.
开发了一种高反应性和酸性手性布朗斯台德酸催化剂,手性 N-三氟甲基磷酰胺。使用这种手性布朗斯台德酸催化剂证明了 α,β-不饱和酮与甲硅烷氧基二烯的高度对映选择性 Diels-Alder 反应。