Dialdehyde in Heterocyclic Synthesis: Synthesis of Compounds Containing Two 4H-Benzopyran Building Blocks under Microwave Irradiation
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摘要:
The syntheses of 4H-benzopyran derivatives were investigated using dialdehyde as a key starting material. The reaction proceeds under microwave irradiation in good yield (87%-95%) with short reaction time (5-8 min),therefore providing a rapid and efficient method of synthesizing a variety of compounds containing two 4H-benzopyran units.