Use of the Nosyl Group as a Functional Protecting Group in Applications of a Michael/Smiles Tandem Process
作者:Siomenan Coulibali、Timothé Godou、Sylvain Canesi
DOI:10.1021/acs.orglett.6b02105
日期:2016.9.2
tandem with a 1,4-addition. This strategy provides access to a ring system laden with valuable functionalities for subsequent manipulations and can serve as a versatile building block for the construction of more complex molecular architectures such as indoles in a manner compatible with the concepts of green chemistry and atom economy.
天然产物中存在的精细化的多环和杂环系统的简洁制剂,是使用nosyl作为功能性保护基来获得的,不仅可以掩盖敏感部分的反应性,而且可以提供最终靶标所需的结构。该基团在脱保护过程中通过新的Truce-Smiles重排与1,4的串联转移而转移至底物上。该策略提供了一个具有丰富功能的环系统的访问权限,以进行后续操作,并且可以作为通用的构建基块,以与绿色化学和原子经济的概念兼容的方式构建更复杂的分子结构(如吲哚)。