A Facile and Efficient Method for the Synthesis of Quinoxaline Derivatives Using [2-(Sulfooxy)Ethyl]Sulfamic Acid as a Novel Difunctional Bronsted Acid, Recyclable and Organocatalyst

摘要

ABSTRACT A novel, mild, eco-friendly and efficient method has been developed for the preparation of quinoxaline derivatives in high yields via a one-pot condensation of aromatic diamine and 1,2-dicarbonyl compounds in the presence of [2-(sulfooxy)ethyl]sulfamic acid (SESA). Moreover, sulfamic acid has been employed as a solid acid catalyst. Recycling of the catalyst is one of the most significant advantages of the proposed method. Keywords: [2-(Sulfooxy)Ethyl]Sulfamic Acid (SESA), Solid Acid, Q.