Improved synthesis of n,n-disubstituted-p-phenylenediamine

Details Improved synthesis of n,n-disubstituted-p-phenylenediamine Improved synthesis of n,n-disubstituted-p-phenylenediamine

C - Chemistry, Metallurgy

07

C

C07C 209/68 (2006.01) C07C 209/10 (2006.01) C07C 209/36 (2006.01) C07C 209/82 (2006.01) C07C 211/51 (2006.01) C07C 211/53 (2006.01)

Patent

CA 2389595

An improved synthesis of N,N-disubstituted-p-phenylene-diamine (DSPDA) preferably di-n-butyl-p-phenylenediamine is disclosed. The improvement rests on the discovery that DSPDA and its salts are extremely sensitive to oxygen so that once the product DSPDA or its salt is formed, oxygen must be excluded from all manipulations.

L'invention concerne un procédé de synthèse améliorée de N,N-disubstituée-p-phénylène-diamine (DSPDA), de préférence la di-n-butyl-p-phénylènediamine. L'amélioration repose sur la découverte que la DSPDA et ses sels sont extrêmement sensibles à l'oxygène, de sorte qu'une fois que le produit DSPDA ou son sel est formé, l'oxygène doit être exclu de toutes les manipulations.

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