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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1723302Generated: November 1, 2026

Maleic Acid → HCID 67885874, compound

https://huagongshe.com/reaction/1723302

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AcidHCID 444266—
ReactantHCID 19769824HCID 19769824—
SolventEthanolHCID 702—
ProductHCID 67885874HCID 6788587476.5%

Reaction Steps

8-Fluoro-1,2,3,9-tetrahydro-3-[(5-methyl-1H-imidazol-4-yl)methyl]-4H-carbazol-4-one (330 mg) was dissolved in dry ethanol (20 ml). Maleic acid (129 mg) in ethanol (10 ml) was added, and the solution was evaporated in vacuo. The residue was triturated with ether and the resultant solid was crystallised from ethanol:ether to give the title compound (351 mg), m.p. 174°-177°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04859662
Source datasetuspto-grants-1989_08
ORD IDord-4ed9546473604b049cfb65ab8f2ff2b4
Source noteuspto-grants-1989_08