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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710709Generated: October 26, 2026

Triethylamine → 5-(2-cyclohexylethyl)-2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole

https://huagongshe.com/reaction/710709

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4-Methylphenylhydrazine monohydrochlorideHCID 12504—
Reactant(2-Bromoethyl)cyclohexaneHCID 15440—
Reactant1-Methylpiperidin-4-one hydrochlorideHCID 12210057—
SolventEthanolHCID 702—
Product5-(2-cyclohexylethyl)-2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indoleHCID 5787605916.1%

Reaction Steps

Preparation of the title compound was carried out according to General Method 8. p-Tolylhydrazine hydrochloride (500 mg, 3.1 mmol), 1-bromo-2-cyclohexylethane (602 mg, 3 mmol), triethyl amine (303 mg, 3 mmol) and N-methyl-4-piperidone hydrochloride (589 mg, 4.5 mmol) were combined in ethanol (3 ml) to obtain 150 mg of 5-(2-cyclohexylethyl)-2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole after purification on neutral alumina using ethyl acetate-hexane gradient.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181240B2
Source datasetuspto-grants-2015_11
ORD IDord-fc86345cb446413b84fccae9d835ee0d
Source noteuspto-grants-2015_11