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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2396833Generated: October 31, 2026

Fumaric Acid → HCID 67737577, compound

https://huagongshe.com/reaction/2396833

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFumaric AcidHCID 444972—
ReactantHCID 54305060HCID 54305060—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventEthanolHCID 702—
ProductHCID 67737577HCID 6773757788%

Reaction Steps

A suspension of 0.1 g of platinum oxide in 25 ml of ethanol was stirred under a hydrogen atmosphere for half an hour and subsequently treated with a solution of 0.92 g of (R)-1-(2-azido-propyl)-5-fluoroindole in 25 ml of ethanol. The reaction mixture was stirred at room temperature for two hours. The catalyst was filtered off and washed with ethanol. The solution was evaporated and the residue was dissolved in 150 ml of ether and treated with 0.58 g (5 mmol) of fumaric acid and stirred overnight. The separated crystals were filtered off and dried. There were obtained 1.14 g (88%) of (R)-2-(5-fluoro-indol-1-yl)-1-methyl-ethylamine fumarate (1:1) as white crystals with m.p. 159°-161° (dec.)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05494928
Source datasetuspto-grants-1996_02
ORD IDord-d3cea303815d4f4baa0a637a64c18e1c
Source noteuspto-grants-1996_02