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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1723303Generated: November 2, 2026

Maleic Acid → HCID 67885494, compound

https://huagongshe.com/reaction/1723303

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AcidHCID 444266—
ReactantHCID 19769827HCID 19769827—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 67885494HCID 6788549477.7%

Reaction Steps

8-Fluoro-1,2,3,9-tetrahydro-9-methyl-3-[(5-methyl-1H-imidazol-4-yl)-methyl]-4H-carbazol-4-one (1.51 g) was dissolved in ethyl acetate (40 ml), and added to a solution of maleic acid (563 mg) in ethanol (50 ml). The solution was cooled to 0°, and the resultant solid was filtered off and dried in vacuo to give the title compound (1.61 g), m.p. 155°-158°, t.l.c. (System A 100:8:1), Rf 0.43.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04859662
Source datasetuspto-grants-1989_08
ORD IDord-d89a4a3913bc461f9afefe12078174ae
Source noteuspto-grants-1989_08