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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1643639Generated: October 30, 2026

2-methyl-2H-1,2,3-triazol-4-amine hydrochloride → 4-(4-Cyano-3-fluoro-phenoxy)-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid (2-methyl-2H-[1,2,3]triazol-4-yl)-amide

https://huagongshe.com/reaction/1643639

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-methyl-2H-1,2,3-triazol-4-amine hydrochlorideHCID 50998648—
Reactant4-(4-Cyano-3-fluoro-phenoxy)-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl esterHCID 66756229—
Product4-(4-Cyano-3-fluoro-phenoxy)-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid (2-methyl-2H-[1,2,3]triazol-4-yl)-amideHCID 66755547—

Reaction Steps

The title compound was prepared in a similar manner as described for Example 1, from 2-methyl-2H-1,2,3-triazol-4-amine hydrochloride (662 mg, 4.92 mmol) and 4-(4-cyano-3-fluoro-phenoxy)-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester (183a) (168 mg, 0.49 mmol) to give a white solid (154 mg, 77% yield). 1H NMR (400 MHz, CDCl3) δ 8.67 (s, 1 H) 8.06 (s, 1 H) 7.57 (dd, J=8.59, 7.33 Hz, 1 H) 7.06-7.15 (m, 2 H) 6.67-6.88 (m, 2 H) 4.10 (s, 3 H) 2.88 (s, 2 H) 1.49 (s, 6 H); LCMS for C21H18FN5O3 m/z 408.00 and 409.00 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08119624B2
Source datasetuspto-grants-2012_02
ORD IDord-f63e071e9fb54f85b9448049500cd3e5
Source noteuspto-grants-2012_02