Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1590469Generated: October 30, 2026

Maleic Acid → HCID 67885494, compound

https://huagongshe.com/reaction/1590469

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 numberUS05202343
Source datasetuspto-grants-1993_04
ORD IDord-3925ee4f42a2463c9cea0725e1018332
Source noteuspto-grants-1993_04