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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1637871Generated: October 30, 2026

Tryptamine → 2,3,4,9-Tetrahydro-1-(4-methylphenyl)-1H-pyrido[3,4-b]indole

https://huagongshe.com/reaction/1637871

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTryptamineHCID 1150—
ReactantTrifluoroacetic acidHCID 6422—
Reactant4-MethylbenzaldehydeHCID 7725—
Product2,3,4,9-Tetrahydro-1-(4-methylphenyl)-1H-pyrido[3,4-b]indoleHCID 3352505100%

Reaction Steps

This product was prepared using the same procedure as for Intermediate 1 with tryptamine (1.0 g, 6.2 mmol), 4-methylbenzaldehyde (0.74 g, 1 equiv.) and TFA (1 mL, 2 equiv.) to give the title compound (1.6 g, 100%) as a white powder. MP: 207-209° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06043252
Source datasetuspto-grants-2000_03
ORD IDord-fef35e02808b45f1bfd9ec448876e2e8
Source noteuspto-grants-2000_03