The ChCl/HGA-based DES as a capable and new catalyst for the green synthesis of benzo[4,5]thiazolo[3,2-a]chromeno[4,3-d]pyrimidin-6-one
Abstract A novel deep eutectic solvent (ChCl/HGA-DES) was prepared by a mixture of two moles of choline chloride (ChCl) and one mole of 2,3-dihydroxybenzoic acid (hypogallic acid, HGA). The eutectic point phase diagram showed that the two moles of ChCl and one mole of HGA is the best molar ratio for...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-90953-w |
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| Summary: | Abstract A novel deep eutectic solvent (ChCl/HGA-DES) was prepared by a mixture of two moles of choline chloride (ChCl) and one mole of 2,3-dihydroxybenzoic acid (hypogallic acid, HGA). The eutectic point phase diagram showed that the two moles of ChCl and one mole of HGA is the best molar ratio for synthesizing a novel DES. Then, ChCl/HGA-DES was characterized by the FT-IR, TGA/DTA, densitometer, eutectic points, and 1HNMR techniques and used as a novel and capable catalyst for the green synthesis of six new benzo[4,5]thiazolo[3,2-a]- chromeno[4,3-d]pyrimidin-6-ones 5(a-f) and five new (2-(2-hydroxyphenyl)-8-methyl-4-phenyl-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-3-yl)(morpholino)methanones 6(a-e) through one-pot condensation reactions. |
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| ISSN: | 2045-2322 |