Efficient and environmentally sustainable domino protocol for the synthesis of diversified dispiroheterocycles using ۱-Butyl-۳-methylimidazolium bromide [bmim]Br
Publish place: Chemical Review and Letters، Vol: 4، Issue: 3
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_CHRL-4-3_003
تاریخ نمایه سازی: 6 شهریور 1400
Abstract:
An environmentally benign, simple, and efficient procedure has been developed for the construct of some symmetrical dispiroheterocycles derivatives by the reaction of the variety of ۶-amino-۲-thiouracil/۶-aminouracil /۲-amino-۱,۳,۴-thiadiazole, isatins and p-toluidine in the presence of ۱-Butyl-۳-methylimidazolium bromide ([bmim]Br) as a solvent as well as catalyst at room temperature. In this study, a variety of bis-spiro-indoline-chromenes, pyranopyranes, imidazo-pyridines, pyrido-pyrimidines and pyridines were obtained with excellent yields within short reaction time and without chromatographic separation. Furthermore, the green catalytic system can be recycled specific times with no decreases in yields and reaction rates.
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Authors
Charansingh Gill
Department Of Chemistry, Dr.Babasaheb Ambedkar Marathawada University, Aurangabad
Makrand Kulkarni
Department of Chemistry, Dr.Babasaheb Ambedkar Marathwada University, Aurangabad
Chetan Jadhav
Department of Chemistry, Dr.Babasaheb Ambedkar Marathawada University, Aurangabad
Amol Nipate
Department of Chemistry, Dr.Babasaheb Ambedkar Marathawada University, Aurangabad
Bhausaheb Magar
Department of Chemistry, Shivaji Art, Commerce and Science College, Kannad, Aurangabad ۴۳۱۱۰۳, Maharashtra, India