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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1775919Generated: October 25, 2026

Formaldehyde → 6-chloro-9-((1-(4-fluorophenyl)cyclopropyl)methyl)-2,3,4,9-tetrahydro-2-methyl-1H pyrido[3,4-b]indole

https://huagongshe.com/reaction/1775919

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantTrifluoroacetic acidHCID 6422—
ReactantHydrazine, (4-chlorophenyl)-, hydrochloride (1:1)HCID 71600—
Reactant4,4-Diethoxy-N-methylbutan-1-amineHCID 13994547—
Reactant1-[1-(Bromomethyl)cyclopropyl]-4-fluorobenzeneHCID 66911661—
Reactant1-(4-Chlorophenyl)-1-((1-(4-fluorophenyl)cyclopropyl)methyl)hydrazineHCID 66911691—
Reactant2-(5-chloro-1-((1-(4-fluorophenyl)cyclopropyl)methyl)-1H-indol-3-yl)-N-methylethanamineHCID 68993060—
SolventAcetonitrileHCID 6342—
SolventTriethylamineHCID 8471—
Product6-chloro-9-((1-(4-fluorophenyl)cyclopropyl)methyl)-2,3,4,9-tetrahydro-2-methyl-1H pyrido[3,4-b]indoleHCID 57930365—

Reaction Steps

The title compound is prepared by following General Methods 1, 3 and 4 by) using 4-chlorophenylhydrazine hydrochloride, 1-(1-(bromomethyl)cyclopropyl)-4-fluorobenzene, and triethylamine (General Method 1), 1-(4-chlorophenyl)-1-((1-(4-fluorophenyl)cyclopropyl)methyl)hydrazine and 4,4-diethoxy-N-methylbutan-1-amine (General Method 3) and 2-(5-chloro-1-((1-(4-fluorophenyl)cyclopropyl)methyl)-1H-indol-3-yl)-N-methylethanamine, formaldehyde and TFA in acetonitrile (General Method 4).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260429B2
Source datasetuspto-grants-2016_02
ORD IDord-ea3dda514537457a89a794a0c4ecd134
Source noteuspto-grants-2016_02