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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1732134Generated: November 1, 2026

Ethanol → HCID 13037302, compound

https://huagongshe.com/reaction/1732134

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantFormaldehydeHCID 712—
ReactantSulfuric AcidHCID 1118—
ReactantL-5-FluorotryptophanHCID 688357—
SolventWaterHCID 962—
ProductHCID 13037302HCID 1303730269%

Reaction Steps

A mixture of 111 mg of 5-fluoro-L-tryptophan, 50 mg of 35% formalin, 0.8 ml of 0.1N sulfuric acid, 0.4 ml of ethanol and 0.3 ml of water is stirred at room temperature for 24 hours. The precipitates are collected by filtration, washed with water and ethanol and then dried. 80 mg of (3S)-6-fluoro-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid are obtained as white powder. Yield: 69%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04625032
Source datasetuspto-grants-1986_11
ORD IDord-90a52b734fcd45d4b20e77c30c2db266
Source noteuspto-grants-1986_11