The atroposelective electrophilicamination of indoles catalyzed by a chiral phosphoric acid (CPA) is reported. The reaction proceeds by asymmetric 1,6-addition to p-quinone diimines to deliver atropochiral N-sulfonyl-3-arylaminoindoles in good yields and with excellent ee values.
报道了手性磷酸(CPA)催化的吲哚选择性亲电胺化。该反应通过不对称的 1,6-加成与对醌二亚胺进行,以良好的收率和优异的 ee 值提供非手性N-磺酰基-3-芳基氨基吲哚。