C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 8/36 (2006.01) C07B 45/02 (2006.01) C07B 45/04 (2006.01) C07C 303/24 (2006.01) C08B 37/00 (2006.01) C08B 37/02 (2006.01) C08F 220/04 (2006.01)
Patent
CA 2468759
The invention concerns a method for sulphonation of a compound having one or several free hydroxyl functions and/or one or several substituted or unsubstituted primary or secondary amine functions. The invention is characterized in that it comprises treating said compound with the SO¿3?-DMF complex in the presence of an acid capturing agent. The acid capturing agent is advantageously selected in the group comprising alkenes or alkines with boiling point lower than 100 ·C or a mixture thereof.
La présente invention a pour objet un procédé de sulfonation de composé présentant une ou plusieurs fonctions hydroxyles libres et/ou une ou plusieurs fonctions amines primaires ou secondaires substituées ou non, caractérisé en ce qu'il comprend le traitement dudit composé avec le complexe SO3-DMF en présence d'un capteur d'acide. Le capteur d'acide est avantageusement choisi dans le groupe comprenant les alkènes ou alkines à point d'ébullition inférieur à 100~C ou un mélange de ceux-ci.
Barbier-Chassefiere Veronique
Garcia-Papy Dulce
Petit Emmanuel
Gowling Lafleur Henderson Llp
Remplacement-Otr3 Organes Tissus: Regeneration Reparation
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