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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1051216Generated: November 3, 2026

Trifluoroacetic acid → 2-(4-chloro-2-methoxy-pyridin-3-yl)-1H-indol-6-ylamine

https://huagongshe.com/reaction/1051216

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant[2-(4-chloro-2-methoxy-pyridin-3-yl)-1H-indol-6-yl]-carbamic acid tert-butyl esterHCID 90102920—
SolventDichloromethaneHCID 6344—
Product2-(4-chloro-2-methoxy-pyridin-3-yl)-1H-indol-6-ylamineHCID 9010289190%

Reaction Steps

A solution of [2-(4-chloro-2-methoxy-pyridin-3-yl)-1H-indol-6-yl]-carbamic acid tert-butyl ester (160 mg, 0.43) in CH2Cl2 (5 mL) was added 2,2,2-trifluoroacetic acid (0.5 mL) at 25° C. The solution was heated to reflux for 3 hours. Concentrate the solution in vacuo to afford crude 2-(4-chloro-2-methoxy-pyridin-3-yl)-1H-indol-6-ylamine (105 mg, 90%) as light yellow oil. The crude product was used directly for next step. MH+ 273.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09388166B2
Source datasetuspto-grants-2016_07
ORD IDord-9cfc0a3644124d9b8558e7eafcae5212
Source noteuspto-grants-2016_07