C. Li
2014
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Journal
Guangzhou Chemical Industry
Abstract
3-Amino-7,8-dimethoxy-2H-chromen-2-one and its derivatives were a potential medicinal value may be an important compounds. The title product was synthesized from 2,3,4-trimethoxybenzaldehyde by the methoxy reduction and Knoevenagel reaction. Its structure was verified by1H-NMR,13C-NMR,and IR analysis. The procedure had the advantages of convenient operations, mild reaction conditions and environment friendly. The experimental results showed that the optimum conditions for the hydrolysis reaction were reaction pH = 3 ~ 4,reaction temperature(75 ± 2) ℃ and reaction time 30 min.