3-Oximino-4-oxo-2,5-dimethyl-tetrahydrofuran

Details 3-Oximino-4-oxo-2,5-dimethyl-tetrahydrofuran 3-Oximino-4-oxo-2,5-dimethyl-tetrahydrofuran

1977-06-30

1978-09-26

Raymond, Richard L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

426536, C07D30732

Patent

active

041169824

ABSTRACT:
The new product 3-oximino-4-oxo-2,5-dimethyl-tetrahydrofuran is manufactured by oximation of the new product 3-carboxy-4-oxo-2,5-dimethyl-tetrahydrofuran with aqueous nitrous acid, nitrite esters or nitrosyl chloride. Because of its fine caramel-like fragrance it may be used for the manufacture of scents and flavor materials. In addition it presents an advantageous method of synthesis of the sought-after flavor material 4-oxo-3-hydroxy-2,5-dimethyl-4,5-dihydrofuran (furaneol).

REFERENCES:
patent: 3403178 (1968-09-01), Volker et al.
patent: 3887589 (1975-06-01), Eykelboom et al.

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