2-Furanacrylic Acid

  • A. L. Mndzhoian

Abstract

A mixture of 192 g (2 moles) of freshly distilled 2-furaldehyde, 208 g (2 moles) of malonic acid, dried at 100°, and 96 ml (1.2 moles) of pyridine, dried over potassium hydroxide, was prepared in a one-liter round-bottomed flask fitted with reflux condenser. The mixture was heated for two hours in a boiling water bath; it was then cooled to room temperature, and 200 ml of water was added. Concentrated aqueous ammonia was then added to the stirred mixture until the acid had almost dissolved; the solution was filtered, and the filter was washed with a little water. The solution was acidified to Congo red with dilute hydrochloric acid and left for 1.5–2 hours in an ice bath. The precipitated 2-furanacrylic acid was filtered off, washed with three 80-ml portions of water, and dried in a desiccator over calcium chloride. The product, which amounted to 252–254 g (91–92%), consisted of colorless needles, m.p. 141° (see Notes).

Keywords

Acrylic Acid Glacial Acetic Acid Calcium Chloride Sodium Acetate Potassium Hydroxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1959

Authors and Affiliations

  • A. L. Mndzhoian

There are no affiliations available

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