An Efficient and Inexpensive Multigram Synthesis of 3,4-Dibromo- and 3,4-Dichlorofuran-2(5H)-one

Abstract

The efficient and inexpensive synthesis of 3,4-dibromo- and 3,4-dichlorofuran-2(5H)-one on a multigram scale by sodium borohydride reduction of mucobromic and mucochloric acid, respectively, is reported.

Key words

furan-2(5H)-ones - reduction - sodium borohydride - polyfunctional compounds - regioselectivity

References

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24

Reaction times longer than 15 min produced crude reaction mixtures which were contaminated by 5-20% of 3-bromo­-furan-2(5H)-one.