C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 309/58 (2006.01) C07C 303/22 (2006.01) C07C 303/32 (2006.01) C07C 309/45 (2006.01) C07C 315/04 (2006.01) C07C 317/44 (2006.01) C07C 319/20 (2006.01) C07C 323/66 (2006.01) C07C 327/26 (2006.01) C07D 295/192 (2006.01)
Patent
CA 2187217
According to the invention, compounds (I): HO3S-Ar-CO-NUC, in which AR (subst.) arylene and Nuc are the radical of a nucleophile Nuc-H and are valuable intermediate products for medicaments, plant protection agents and dyes, can be produced by reacting an internal diazonium salt of formula (II): - O3S-Ar-N2+ with CO in the presence of a metallic catalyst from group (VIII) of the periodic system or CU and Nuc-H or its salt.
Le procédé selon l'invention permet d'obtenir des composés (I) HO¿3?S-Ar-CO-NUC dans lesquels AR (subst.) arylène et Nuc représentent le radical d'un nucléophile Nuc-H et constituent des produits intermédiaires précieux pour des médicaments, des agents phytosanitaires et des colorants. Il faut pour cela faire réagir un sel de diazonium interne (II) ?-¿O¿3?S-Ar-N¿2??+¿ avec du CO, en présence d'un catalyseur métallique du groupe (VIII) de la classification périodique des éléments, ou avec du CU et Nuc-H, ou avec le sel de ce dernier.
Fetherstonhaugh & Co.
Hoechst Schering Agrevo Gmbh
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