6-Chloro-1-methyl-2H-3,1-benzoxazine-2,4(1H)-dione → 1-(2-Methylamino-5-chlorobenzoyl)-1H-indazol-3-ol
Reaktionsgleichung
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([OH:10])=[N:2]1.[CH3:11][N:12]1C(=O)O[C:15](=[O:16])[C:14]2=[CH:20][C:21]([Cl:24])=[CH:22][CH:23]=[C:13]12>>[CH3:11][NH:12][C:13]1[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][C:14]=1[C:15]([N:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([OH:10])=[N:2]1)=[O:16]Komponenten
3
Versuchsvorschrift
1H-Indazol-3-ol was reacted with N-methyl-5-chloroisatoic anhydride according to the general procedure A above and afforded the desired amine as a yellow solid in 33.5% yield; m.p. 210°-213° C.
Quellen und Nachweise
- ORD-Eintrag
- ord-8fe2ed2019f7483aa6fa2ac88f9e5b10
- Quelldatensatz
- uspto-grants-1985_08
- Patentnummer
- US04537966
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