Guanidinium-based sulfonic acid as a new Brønsted acid organocatalyst in organic synthesis in water
作者:Mozhdeh Seyyedhamzeh、Shabnam Shaabani、Mona Hamidzad Sangachin、Ahmad Shaabani
DOI:10.1007/s11164-015-2181-4
日期:2016.4
Guanidinium-based sulfonic acid as a new Brønsted acid organocatalyst has been synthesized, characterized, and applied for the synthesis of 3,4-dihydroquinoxalin-2-amine, 1,6-dihydropyrazine-2,3-dicarbonitrile, triazolo[1,2-a]indazole-trione, and spiro triazolo[1,2-a]indazole-tetraone derivatives in an aqueous medium. The catalytic system, reported here, possesses the advantages of both homogeneous and heterogeneous catalysts and can be repetitively used in water.
基于胍基磺酸作为一种新型布仑斯特酸有机催化剂已被合成、表征,并应用于水相中合成3,4-二氢喹唔啉-2-胺、1,6-二氢吡嗪-2,3-二腈、三唑并[1,2-a]吲哚三酮和螺三唑并[1,2-a]吲哚四酮衍生物。本文报道的催化体系兼具均相和非均相催化剂的优势,并且可在水中重复使用。