6-Methylcoumarin synthesis
- Product Name:6-Methylcoumarin
- CAS Number:92-48-8
- Molecular formula:C10H8O2
- Molecular Weight:160.17
175647-90-2
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Yield:92-48-8 94%
Reaction Conditions:
with tris[2-phenylpyridinato-C2,N]iridium(III) in acetonitrile at 20; for 24 h;Sealed tube;Inert atmosphere;Irradiation;
Steps:
3 Example 3
To the reaction tube was added ethyl 2-hydroxy-5-methylcinnamate (0.2 mmol), tris (2-phenylpyridine) iridium(III) (0.002 mmol) and 2 mL of acetonitrile, and a magnet was added. After sealing, the air in the reaction tube was replaced with argon, Color LED light irradiation under stirring for 24 hours, the reaction temperature is room temperature. After completion of the reaction, extraction with ethyl acetate was carried out And ethyl acetate phase and ethyl acetate phase drying after chromatography, eluent hexane and ethyl acetate, the ratio of 15:1, and finally a white solid, 6-methyl coumarin (3),
References:
CN106674175,2017,A Location in patent:Paragraph 0056; 0057; 0058; 0059; 0060; 0061; 0062; 0063