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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498988Generated: October 30, 2026

Water → HCID 136591214, compound

https://huagongshe.com/reaction/498988

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant5-Hydrazino-1,3-dimethyl-4-nitro-1H-pyrazoleHCID 3537257—
Reactant7,8-dimethoxy-3,4-dihydro-1H-1-benzazepine-2,5-dioneHCID 23000064—
SolventAcetic AcidHCID 176—
ProductHCID 136591214HCID 13659121412.2%

Reaction Conditions

Temperature70 °C

Reaction Steps

1,3-Dimethyl-4-nitro-1H-pyrazol-5-yl-hydrazine (0.073 g, 0.4 mmol) was added to a suspension of 7,8-dimethoxy-1H-[1]benzazepin-2,5(3H, 4H)-dione (0.100 g, 0.4 mmol) in acetic acid (5 ml) with stirring under argon. The mixture was heated at 70° C. for 2 days, cooled and water (5 ml) added. The precipitate was then filtered off to give the title compound as a yellow solid (0.019 g, yield 11.5%); 1H-NMR (DMSO-d6, 300 MHz): δ (ppm)=12.8 (v br s; 1 H), 9.59 (s; 1H), 7.2 (s; 1H), 6.63 (s; 1H), 3.96 (s; 3H), 3.75-3.77 (s, 6H), 3.05 (br t, 2H), 2.57 (br t, 2H), 2.35 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07767664B2
Source datasetuspto-grants-2010_08
ORD IDord-2783a0d68f0c44529a4618bec0d1722f
Source noteuspto-grants-2010_08