urbaf2

o- Nitrotoluene

toluene :

NITRO DERIVATIVES

was obtained by Beilstein

OF TOLUENE^281

and Kuhlberg [21] from 2,4-dinitro-

(4)

m- Nitrotoluene has also been obtained from p- toluidine by the same workers:

(5)

The fairly pure p- isomer may be isolated from a mixture of nitrotoluenes by

freezing and repeated crystallization.

DINITROTOLUENES

Six isomeric dinitro derivatives of toluene are known: