Guanidinium-based sulfonic acid as a new Brønsted acid organocatalyst in organic synthesis in water

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 derivative...

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Bibliographic Details
Published in:Research on chemical intermediates 2016-04, Vol.42 (4), p.2845-2855
Main Authors: Seyyedhamzeh, Mozhdeh, Shaabani, Shabnam, Hamidzad Sangachin, Mona, Shaabani, Ahmad
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physical Chemistry
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Summary: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. Graphical Abstract
ISSN:0922-6168
1568-5675
DOI:10.1007/s11164-015-2181-4