Process for the nuclear chlorination of aromatic amines in the para position
Abstract
Abstract A PROCESSSS FOR THE NUCLEAR CHLORINATION OF AROMATIC AMINES OF THE FORMULA: ARNR1R2 WHEREIN AR, R1 AND R2 REPRESENT CERTAIN SPECIFIED SUBSTITUENTS COMPRISES CONTACTING AT LEAST ONE OF THE SAID AMINES WITH CUPRIC CHLORIDE IN AN AQUEOUS MEDIUM CONTAINING HYDROCHLORIC ACID IN EXCESS OF THAT REQUIRED FOR NEUTRALIZATION OF THE SAID AMINE OR AMINES, AT A REACTION TEMPERATURE IN THE RANGE OF FROM 50 TO 150*C. A CONTINUOUS PROCESS FOR THE SAID CHLORINATION COMPRISES CONTACTING THE SAID REACTANTS UNDER THE ABOVE CONDITIONS, CONTINUOUSLY PASSING AN OXYGEN CONTAINING GAS INTO THE REACTOR, SEPARATING THE CHLORINATED AMINE SO FORMED, AND RECYCLING ANY UMCHANGED MATERIAL INTO THE REACTOR.
Inventors
- 👤 H Crocker
Bibliographic Details
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