Preparation of 2(5H)-furanones

Details Preparation of 2(5H)-furanones Preparation of 2(5H)-furanones

1988-06-01

1989-08-01

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30788

Patent

active

048534730

ABSTRACT:
2(5H)-furanones I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, are prepared by heating a 3-formylcarboxylate or 3-formylcarboxylic acid II ##STR2## where R.sup.3 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, to 100.degree.-450.degree. C. in the presence of an acidic catalyst.

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C. J. Cavallito and T. H. Haskell, J. Am. Chem. Soc. 68 (1946), p. 2332.
S. Inayama and T. Kawamata, Chem. Pharm. Bull. (1973), p. 461.

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