Synthetic experiments in the benzo-pyrone series - Part III. Syntheses of coumarino- and flavono-α-methyl-7: 8-dihydrofurans
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/seca/013/01/0043-0048
A fresh method for building up furan rings on to coumarin and flavone compounds has been studied. Starting with umbelliferone, 4-methyl-umbelliferone and 3-methoxy-7-hydroxy-flavone the corresponding angular α-methyl-dihydrofuran derivatives have been obtained. The 8-allyl compounds are first prepared and these are subjected successively to treatment with mercuric chloride, iodine in potassium iodide solution and sodium in alcohol.
B Krishnaswamy1 T R Sesha-Dri1
© 2021-2022 Indian Academy of Sciences, Bengaluru.