N-Methylisatoic anhydride → HCID 178482128, compound

Reaction equation

[NH:1]1[C:9]2[C:4](=[N:5][CH:6]=[CH:7][CH:8]=2)[C:3](=[O:10])[NH:2]1.[CH3:11][N:12]1C(=O)O[C:15](=[O:16])[C:14]2=[CH:20][CH:21]=[CH:22][CH:23]=[C:13]12>>[OH:10][C:3]1[C:4]2=[N:5][CH:6]=[CH:7][CH:8]=[C:9]2[N:1]([C:15](=[O:16])[C:14]2[CH:20]=[CH:21][CH:22]=[CH:23][C:13]=2[NH:12][CH3:11])[N:2]=1

Participants

Reactant 2

HCID 25160N-Methylisatoic anhydride

HCID 122133831,2-Dihydro-3H-pyrazolo[4,3-b]pyridin-3-one

Product 1

HCID 178482128HCID 178482128, compoundYield 84.8%

Procedure

Pyrazolo[4,3-b]pyridine-3(2H)-one was reacted with N-methylisatoic anhydride according to the general procedure A above and afforded the desired amine as a yellow solid in 84.8% yield; m.p. 221°-223° C.,

Sources & evidence

ORD record: ord-3ec681c2510d4e32a4503548d2c8e53e
Source dataset: uspto-grants-1985_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04537966

Reaction notes

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