作者:Jayden J. Gaston、Andrew J. Tague、Jamie E. Smyth、Nicholas M. Butler、Anthony C. Willis、Nico van Eikema Hommes、Haibo Yu、Timothy Clark、Paul A. Keller
DOI:10.1021/acs.joc.1c00359
日期:2021.7.2
The deprotection of chiral 1,2-bis(tosylamides) to their corresponding 1,2-diamines is mostly unsuccessful under standard conditions. In a new methodology, the use of Mg/MeOH with sufficient steric additions allows the facile synthesis of 1,2-diamines in 78–98% yields. These results are rationalized using density functional theory and the examination of inner and outer-sphere reduction mechanisms.
在标准条件下,将手性 1,2-双(甲苯磺酰酰胺)脱保护为相应的 1,2-二胺通常是不成功的。在一种新方法中,使用具有足够空间添加量的 Mg/MeOH 可以轻松合成 1,2-二胺,产率 78-98%。这些结果使用密度泛函理论和对内外球体减少机制的检查进行了合理化。