WERKWIJZE VOOR HET BEREIDEN VAN EEN 2,4-DINITROFENOL.

摘要

1330083 Preparation of nitrophenols FRANCE ARMED FORCES MINISTER OF 20 March 1972 [25 March 1971] 12970/72 Heading C2C 2,4-Dinitrophenols of formula in which R is H or a C 1-8 alkyl group or a cycloalkyl, phenyl or benzyl group which may optionally be substituted with a C 1-4 alkyl group or a halogen atom is prepared by nitrating with HNO 3 an alkali metal phenate of formula in which M is an alkali metal and R has the above mentioned meaning, in solution in water at a temperature of from 40‹ to 80‹ C., with agitation, the nitric acid content of the reaction mixture being from 10 to 50% by weight.