Oxidation of diazenyl-protected N-heterocycles – a new entry to functionalized lactams
作者:Martina Petrović、Dina Scarpi、Martin Nieger、Nicole Jung、Ernesto G. Occhiato、Stefan Bräse
DOI:10.1039/c6ra26546d
日期:——
Functionalized lactams are an important class of heterocycles since they are useful intermediates in organic synthesis and show biological activity in diverse therapeutic applications. In the herein presented study, a strategy for the synthesis of N-aryldiazenyllactams, offering the direct access to protected lactam derivatives is described. After the formation of triazenes from diazonium salts and
官能化的内酰胺是一类重要的杂环,因为它们是有机合成中的有用中间体,并在各种治疗应用中显示出生物学活性。在本文提出的研究中,描述了合成N-芳基二氮烯基内酰胺的策略,该策略提供了直接获得被保护的内酰胺衍生物的途径。在由重氮盐和可商购的N-杂环形成三氮烯后,在钌催化下用高碘酸盐氧化(定向CH活化)可以一步得到N-二氮烯基内酰胺。为了证明所得内酰胺对进一步官能化的适用性,作为一个实例,提出了N-二氮烯基内酰胺的烷基化。