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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 990947Generated: November 4, 2026

Ethanol, 1-ethoxy-2,2,2-trifluoro- → HCID 21094333, compound

https://huagongshe.com/reaction/990947

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanol, 1-ethoxy-2,2,2-trifluoro-HCID 9897—
Reactant2-Amino-5-NitrophenolHCID 4984721—
ReactantSodium cyanoborohydrideHCID 5003444—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 21094333HCID 2109433372.8%

Reaction Steps

This compound was prepared by General Method 7 (EXAMPLE 5) from 2-amino-5-nitrophenol (5.0 g, 32 mmol), 2,2,2-trifluoroacetaldehyde ethyl hemiacetal (9.4 g, 65 mmol) and NaBH3CN (4.1 g, 65 mmol) in 90 mL trifluoroacetic acid to afford 5.5 g (72%) of 2-(trifluoroethyl)amino-5-nitrophenol, a yellow solid, after flash chromatography (3:1 hexanes:EtOAc). Data for 2-(trifluoroethyl)amino-5-nitrophenol: 1H NMR (400 MHz, acetone-d6) 9.48 (broad s, 1H), 7.79 (dd, 1H, J=9.1, 2.4), 7.67 (d, 1H, J=2.4), 6.96 (d, 1H, J=8.8), 6.20 (broad s, 1H), 4.26-4.18 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06462038B1
Source datasetuspto-grants-2002_10
ORD IDord-59faa8e389ec4501939e90d91a90377e
Source noteuspto-grants-2002_10