An environmentally benign protocol for aqueous synthesis of tetrahydrobenzo[b]pyrans catalyzed by cost-effective ionic liquid

A mild, efficient, and environmentally benign protocol for the synthesis of tetrahydrobenzo[b]pyran derivatives in the presence of readily accessible, biodegradable, and choline hydroxide based ionic liquid as catalyst has been established. The key features of the reported methodology include good t...

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Bibliographic Details
Published in:International journal of molecular sciences 2014-04, Vol.15 (4), p.6897-6909
Main Authors: Hu, Huanan, Qiu, Fangli, Ying, Anguo, Yang, Jianguo, Meng, Haiping
Format: Article
Language:English
Subjects:
Aqueous chemistry
biodegradability
Biodegradation, Environmental
Catalysis
Chemical reactions
Chemical synthesis
Choline - chemistry
choline hydroxide
cost-effectiveness
Green chemistry
ionic liquid
Ionic Liquids - chemistry
Molecular chemistry
pyran
Pyrans - chemical synthesis
Pyrans - chemistry
Pyrans - metabolism
recyclability
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Summary:A mild, efficient, and environmentally benign protocol for the synthesis of tetrahydrobenzo[b]pyran derivatives in the presence of readily accessible, biodegradable, and choline hydroxide based ionic liquid as catalyst has been established. The key features of the reported methodology include good to excellent yields of desired products, simple work-up procedure and good recyclability of catalysts, which may be a practical alternative to the existing conventional processes for the preparation of 4-H pyrans to cater to the requirements of academia as well as industry.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms15046897