Title: Formyl Fluoride
CAS Registry Number: 1493-02-3
Molecular Formula: CHFO
Molecular Weight: 48.02
Percent Composition: C 25.01%, H 2.10%, F 39.56%, O 33.32%
Line Formula: HCOF
Literature References: Prepn by the interaction of anhydr formic acid, potassium fluoride and benzoyl chloride (16% yield): Nyesmejanov, Kahn, Ber. 67, 203 (1946); from benzoyl fluoride and formic acid (36% yield): Masentshev, J. Gen. Chem. USSR 16, 203 (1946); from benzoyl chloride, formic acid, and KHF2 (35% yield): Olah et al., Ber. 89, 862 (1956); Olah, Kuhn, J. Am. Chem. Soc. 82, 2381 (1960); from acetic formic anhydride, CH3COOOCH, and anhydr HF (67% yield): Olah, Kuhn, ibid. 2380.
Properties: Gas at ordinary temps and pressure: bp760 -29°. mp -142°. Trouton constant 20.8. Heat of vaporization at -24°: 5.175 kcal.
Melting point: mp -142°
Boiling point: bp760 -29°
CAUTION: Strong irritant.
Use: Acylating agent in organic synthesis. |