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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1918545Generated: October 25, 2026

Benzyl azide → ethyl 1-benzyl-1H-1,2,3-triazole-4-carboxylate

https://huagongshe.com/reaction/1918545

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl azideHCID 12152—
ReactantN-phenyl-(1,1'-biphenyl)-4-amineHCID 13087229—
ReactantSodium AscorbateHCID 23667548—
CatalystCopper sulfate pentahydrateHCID 24463—
SolventWaterHCID 962—
Solventtert-ButanolHCID 6386—
Productethyl 1-benzyl-1H-1,2,3-triazole-4-carboxylateHCID 84972224%

Reaction Steps

A solution of benzyl azide (0.200 mL; 1.61 mmol), ethyl propriolate (0.163 mL; 1.61 mmol), copper sulfate pentahydrate (0.016 mL, 1M solution in water), sodium ascorbate (0.161 mL; solution 1M in water) in a mixture of tert-butanol (3 mL) and water (3 mL) was stirred at room temperature overnight. The reaction mixture was diluted in water and the product crystallized out to furnish 0.090 g (24%) of ethyl 1-benzyl-1H-1,2,3-triazole-4-carboxylate as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618138B2
Source datasetuspto-grants-2013_12
ORD IDord-5ceda39bea834ed2994e016bebfdc274
Source noteuspto-grants-2013_12