One-pot synthesis of 3-(furan-2-yl)-4: H -chromen-4-ones from 1-(2-hydroxyphenyl)butane-1,3-diones and 2,5-dimethoxy-2,5-dihydrofuran catalyzed via K10 montmorillonite under solvent-free conditions
Han Jie
Wang Tao
Feng Siqi
Li Chenchen
Zhang Zunting
· 2016
期刊名称：
Green Chemistry
2016 年
18 卷
14 期
摘要：
A new, concise and efficient method of one-pot synthesis of 3-(furan-2-yl)-4H-chromen-4-ones was developed using K10 montmorillonite catalysis under solvent-free conditions. The procedure of the synthesis of 3-(furan-2-yl)-4H-chromen-4-ones was that 1-(2-hydroxyphenyl)butane-1,3-diones and 2,5-dimethoxy-2,5-dihydrofuran underwent a process of ?±-alkoxyalkylation in the presence of K10 montmorillonite at 80 ?°C for 0.5 h and continuously at 120 ?°C for another 0.5 h. The advantages of this method were that it was solvent-free, the K10 montmorillonite was recyclable and it had an easy work-up.
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