Iodine-Promoted Oxidative Amidation of Terminal Alkenes - Synthesis of α-Ketoamides, Benzothiazoles, and Quinazolines
作者:Ramesh Deshidi、Shekaraiah Devari、Bhahwal Ali Shah
DOI:10.1002/ejoc.201403547
日期:2015.3
A novel metal-free strategy for oxidative amidation of terminal alkenes by using I2/DMSO for the synthesis of α-ketoamides has been developed. Intriguingly, the use of tert-butylhydroperoxide (TBHP) as co-oxidant can facilitate the synthesis of α-ketoamides at room temperature without any solvent, thereby making it a green protocol. The reaction with primary amines can be easily achieved by using SeO2
An efficient one-pot synthetic protocol has been proposed for the synthesis of luntonin F from easily available starting materials. Through a rational logical design, multifundamental reactions (iodination, Kornblum oxidation, and annulation) were assembled in one-pot. The developed approach can efficiently synthesize luntonin F and a diversity of analogues.