Abstract
A convenient green synthesis of benzopyrazines and bis-benzopyrazines has been performed by the condensation of diversely substituted diamines and dicarbonyl compounds in water using indium powder as catalyst under controlled microwave exposure. The effects of microwave power, and temperature on this reaction are investigated in detail to identify the best condition. A wide range of diversely substituted diamines and dicarbonyl compounds produce excellent yield of the corresponding benzopyrazines and bis-benzopyrazines. A comparative study has also been made between microwave-induced procedure and conventional method. The present method is atom-economical, environmentally friendly, and affords synthetically useful and challenging products very rapidly.
Keywords: Aqueous, benzopyrazine, green chemistry, indium, microwave, nitrogen heterocycles, quinoxaline.
Combinatorial Chemistry & High Throughput Screening
Title:A Selective, Expeditious and Sustainable Entry en Route to Benzopyrazines and bis-Benzopyrazines
Volume: 18 Issue: 1
Author(s): Debasish Bandyopadhyay, Sanghamitra Mukherjee and Bimal K. Banik
Affiliation:
Keywords: Aqueous, benzopyrazine, green chemistry, indium, microwave, nitrogen heterocycles, quinoxaline.
Abstract: A convenient green synthesis of benzopyrazines and bis-benzopyrazines has been performed by the condensation of diversely substituted diamines and dicarbonyl compounds in water using indium powder as catalyst under controlled microwave exposure. The effects of microwave power, and temperature on this reaction are investigated in detail to identify the best condition. A wide range of diversely substituted diamines and dicarbonyl compounds produce excellent yield of the corresponding benzopyrazines and bis-benzopyrazines. A comparative study has also been made between microwave-induced procedure and conventional method. The present method is atom-economical, environmentally friendly, and affords synthetically useful and challenging products very rapidly.
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Cite this article as:
Bandyopadhyay Debasish, Mukherjee Sanghamitra and Banik K. Bimal, A Selective, Expeditious and Sustainable Entry en Route to Benzopyrazines and bis-Benzopyrazines, Combinatorial Chemistry & High Throughput Screening 2015; 18 (1) . https://dx.doi.org/10.2174/1386207318666150131125053
DOI https://dx.doi.org/10.2174/1386207318666150131125053 |
Print ISSN 1386-2073 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5402 |
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