Process for the preparation of N,N-dimethyl-N-(2-bromo-4-methylp

Details Process for the preparation of N,N-dimethyl-N-(2-bromo-4-methylp Process for the preparation of N,N-dimethyl-N-(2-bromo-4-methylp

1981-03-30

1983-07-19

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260141, 564210, 564211, 564414, C07C11300, C07C11304, C07C10327, C07C 8760

Patent

active

043943098

ABSTRACT:
A process for the preparation of N,N-dimethyl-N'-(2-bromo-4-methyl-phenyl)-triazene of the formula ##STR1## comprising (a) reacting N-acetyl-p-toluidine of the formula ##STR2## with bromine at a temperature between about 0.degree. and 100.degree. C., to give the intermediate product of the formula ##STR3## (b) reacting the intermediate product with hydrochloric acid by either (i) adding a dilute solution of aqueous hydrochloric acid to the intermediate product in its reaction solution and heating the mixture to a temperature between about 50.degree. and 120.degree. C., or

REFERENCES:
patent: 2828299 (1958-03-01), Von Glahn et al.
patent: 2842535 (1958-07-01), Lowenfeld et al.
patent: 3162571 (1964-12-01), Adams et al.
patent: 3206357 (1965-09-01), Cannon et al.
Justus Lieberg's, "Amalen der Chemie vol. 253 (1886)", pp. 254-271, (Wallach).
"Organic Syntheses Collective vol. 1", pp. 111-113, (Johnson et al.).
"Sull'Attivita Fitotossica Di Derivati Triazenici", pp. 129-132, 143, 148, (Mazza et al.).

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