One-pot Mannich/aza-Wittig/deaminative aromatization reactions for the synthesis of 1,2,3,4-tetrahydroacridines and cyclohepta[<i>b</i>]quinolines
作者:Wensheng Zhang、Wei Zheng、Guoqiang Zuo、Xiaole Li、Xiaofeng Zhang、Wei Zhang
DOI:10.1039/d2nj04082d
日期:——
A one-pot synthesis for the preparation of 1,2,3,4-tetrahydroacridines involving a Zr(IV)-catalyzed Mannich reaction of o-azidobenzaldehydes and arylamines with cycloketones, followed by aza-Witting cyclization and deaminative aromatization, is developed. This method can be extended for the synthesis of cyclohepta[b]quinolines.
开发了用于制备 1,2,3,4-四氢吖啶的一锅法合成,涉及 Zr( IV ) 催化的邻叠氮基苯甲醛和芳基胺与环酮的曼尼希反应,然后是氮杂维廷环化和脱氨基芳构化。该方法可推广用于环庚[ b ]喹啉的合成。