1060. Benzamide

Nomenclature

CAS number: 55-21-0
Benzoylamide.
C7H7NO; mol wt 121.14.
C 69.40%, H 5.82%, N 11.56%, O 13.21%.

Description and references

Prepd from benzoyl chloride and ammonium carbonate. Lab prepn: Gattermann-Wieland, Praxis des Organischen Chemikers (de Gruyter, Berlin, 40th ed., 1961) p 119. Alternate procedure using concd ammonia soln: A. I. Vogel, Practical Organic Chemistry (Longmans, London, 3rd ed., 1959) p 797.

Chemical structure

Properties

Crystals. d4 1.341. mp 130°. bp 288°. One gram dissolves in 74 ml water, more sol in boiling water, in 6 ml alc, 3.3 ml pyridine. Sol in hot benzene, slightly in ether; sol in ammonia with formation of a small quantity of benzonitrile.

Derivative

N-Chloro deriv.

Properties

mp 116°. Sol in water; insol in alcohol or benzene.