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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641406Generated: October 30, 2026

Trifluoroacetic acid → [1-(2-Ethoxy-2-oxoethyl)-3-nitro-1H-indol-4-yl]acetic Acid

https://huagongshe.com/reaction/641406

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl[1-(2-ethoxy-2-oxoethyl)-3-nitro-1H-indol-4-yl]acetateHCID 57426201—
SolventDichloromethaneHCID 6344—
Product[1-(2-Ethoxy-2-oxoethyl)-3-nitro-1H-indol-4-yl]acetic AcidHCID 57426202—

Reaction Steps

To a solution of tert-butyl [1-(2-ethoxy-2-oxoethyl)-3-nitro-1H-indol-4-yl]acetate from Step E (300 mg, 0.828 mmol) in CH2Cl2 (1 mL) was added TFA (0.63 mL, 8.28 mmol). The mixture was stirred at ambient temperature for 1 h then concentrated in vacuo to give the title compound. MS: m/z=307 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696192B2
Source datasetuspto-grants-2010_04
ORD IDord-cc2f41b788da49cebac35d8ad886390e
Source noteuspto-grants-2010_04