C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 309/46 (2006.01) C07C 303/22 (2006.01) C07C 303/32 (2006.01)
Patent
CA 2396008
An integrated process for preparing .alpha.-(2,4-disulfophenyl)-N-tert- butylnitrone and its salts is disclosed in whichN-tert-butylhydroxylamine acid addition salt is incompletely neutralised so as to leave catalytic amounts of acid and the neutralisation product is condensed with an appropriate aldehyde.
La présente invention concerne un procédé intégré de préparation de .alpha.-(2-4-disulfophényle) -N-tert-butylnitrone et ses sels dans lequel un sel d'addition de N-tert-butylhydroxylamine est partiellement neutralisé de manière à laisser subsister des quantités catalytiques d'acide et le produit de la neutralisation est condensé au moyen d'un aldéhyde approprié.
Blixt Jorgen
Kruk Henry
Larsson Ulf
Mcginley John
Pouhov Sergei
Astrazeneca Ab
Centaur Pharmaceuticals Inc.
Fetherstonhaugh & Co.
Renovis Inc.
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