Novel Procedure for the Coupling of Sterically Hindered Electron-Deficient Anilines to the 6-Position of the Purine Core
作者:Ruben Leenders、Jan Heeres、Dirk Vandenput、Jérôme Guillemont、Paul Lewi
DOI:10.1080/00397911.2010.517615
日期:2011.11.1
Sterically hindered electron-deficient anilines are coupled to the 6-position of the purine core only when activated as their corresponding TFA-amide. The free anilines did not react under all conditions tested. After aqueous work-up, the TFA-group is lost.This procedure provides a new tool in the construction of purines functionalized with a sterically hindered electron-deficient aniline in the 6-position.