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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 447947Generated: October 29, 2026

Ammonia → 3-[1-(2-Chloro-phenyl)-ethoxy]-5-(3-phenylamino-[1,2,4]triazol-1-yl)-thiophene-2-carboxylic acid amide

https://huagongshe.com/reaction/447947

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantDiethyl EtherHCID 3283—
Reactant3-[1-(2-Chloro-phenyl)-ethoxy]-5-(3-phenylamino-[1,2,4]triazol-1-yl)-thiophene-2-carboxylic acid methyl esterHCID 54752952—
SolventMethanolHCID 887—
Product3-[1-(2-Chloro-phenyl)-ethoxy]-5-(3-phenylamino-[1,2,4]triazol-1-yl)-thiophene-2-carboxylic acid amideHCID 2485265027%

Reaction Conditions

Temperature100 °C

Reaction Steps

3-[1-(2-Chloro-phenyl)-ethoxy]-5-(3-phenylamino-[1,2,4]triazol-1-yl)-thiophene-2-carboxylic acid methyl ester (66 mg, 0.15 mmol, 1.0 Eq.) was suspended in 7M NH3 in MeOH (10 mL) and heated to 100° C. in a pressure tube for 3 days. The solvent was removed in vacuo and the product isolated by column chromatography (10% MeOH/DCM) followed by tritruation from diethyl ether to give the title compound as an off-white solid (17 mg, 0.04 mmol, 27%); 1H NMR (400 MHz, d-6 DMSO) δ. 1.72 (3H, d), 5.88 (1H, q), 6.88 (1H, t), 7.03 (1H, br s), 7.26 (1H, s), 7.30 (2H, t), 7.36-7.43 (2H, m), 7.52 (1H, dd), 7.57 (2H, d), 7.66 (1H, dd), 7.75 (1H, br s), 9.02 (1H, br s), 9.65 (1H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481578B2
Source datasetuspto-grants-2013_07
ORD IDord-29e3eb80405547e8b3b79eb0f304e44a
Source noteuspto-grants-2013_07