作者:Mikhail A. Kalinin、Aleksei V. Medved’ko、Mikhail E. Minyaev、Sergey Z. Vatsadze
DOI:10.1021/acs.joc.3c00514
日期:2023.6.2
A new approach to the preparation of N,N′-unsymmetrically substituted 9-aminobispidines through aminal bridge removal reaction has been developed, the principal feature of which is the ability to selectively functionalize all three nitrogen atoms. The intermediates of 1,3-diazaadamantane’s aminal bridge removal reaction are characterized, and the mechanism of this reaction is proposed based on the
开发了一种通过缩醛桥去除反应制备 N , N ′-不对称取代的 9-氨基双吡啶的新方法,其主要特征是能够选择性地官能化所有三个氮原子。表征了1,3-二氮杂金刚烷脱氨桥反应的中间体,并在分析其结构的基础上提出了该反应的机理。以前未知的饱和杂环的代表1,5,9-triazatricyclo[5.3.1.0 3,8]获得十一烷系统并对其进行结构表征。因此,首次有可能获得在氮原子上含有乙酰基、Boc 和苄基的 3,7,9-三取代双吡啶,这些基团可以独立去除(正交保护基)。