Green synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins using dual-frequency ultrasonication
| Autor: | Aruna Yadav, Satya Parkash Sharma, Neeraj Vashisth, Surender Kumar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
naphthyl coumarins
1-naphthylacetic anhydride 010405 organic chemistry Renewable Energy Sustainability and the Environment Chemistry Health Toxicology and Mutagenesis General Chemical Engineering Sonication 010402 general chemistry 01 natural sciences ultrasonication phenylacetic anhydride Industrial and Manufacturing Engineering 0104 chemical sciences Fuel Technology Environmental Chemistry Dual frequency QD1-999 3-phenylcoumarins Nuclear chemistry |
| Zdroj: | Green Processing and Synthesis, Vol 9, Iss 1, Pp 399-404 (2020) |
| ISSN: | 2191-9550 2191-9542 |
| Popis: | Green synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins has been carried out in one step by reacting 2-hydroxybenzaldehydes and 2-hydroxyacetophenones with 1-naphthylacetic anhydride and phenylacetic anhydride, respectively, using dual-frequency ultrasonication, i.e. ultrasonic bath of 40 kHz and probe of 20 kHz. The compounds were obtained in very high yield (80–90%) and their structures were confirmed by infrared and nuclear magnetic resonance data. |
| Databáze: | OpenAIRE |
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