C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 239/52 (2006.01) C07C 243/22 (2006.01) C07D 239/26 (2006.01) C07D 239/28 (2006.01) C07D 239/30 (2006.01) C07D 239/42 (2006.01) C07D 403/04 (2006.01)
Patent
CA 2425531
The present invention provides a process for producing a pyrimidine-substituted aniline compound of formula (6): (see formula 6) (wherein R1, R2 and R3 are each alkyl, alkoxy, alkoxyalkyl, haloalkyl, carboxyl, alkoxycarbonyl, alkylcarboxamide, nitro, aryl, arylalkyl, aryloxy, halogen or hydrogen; and X and Y are each hydrogen, alkyl, alkoxy, alkoxyalkyl, haloalkyl, carboxyl, alkoxycarbonyl, or halogen) by oxidizing a pyrimidine-substituted indole compound of formula (3): (see formula 3) (wherein R1, R2, R3, X and Y are defined above) to open of the indole ring to produce a pyrimidine-substituted acetanilide compound of formula (4): (see formula 4) (wherein R1, R2, R3, X and Y are defined above) and subjecting this compound to reduction and deacetylation, advantageously in industry.
L'invention concerne un procédé avantageux au plan industriel d'aniline substituée représentée par la formule générale (6). Ledit procédé consiste : à oxyder un composé indole substitué représenté par la formule générale (3), de sorte que le cycle indole soit ouvert et qu'un composé acétanilide représenté par la formule générale (4) soit produit ; à réduire et à désacétyler ledit composé.
Hiyoshi Hidetaka
Ogawa Mahito
Ihara Chemical Industry Co. Ltd.
Smart & Biggar
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