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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390365Generated: October 30, 2026

Triethylamine → Ethyl [5-(5-bromo-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetate

https://huagongshe.com/reaction/390365

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTrifluoroacetic anhydrideHCID 9845—
Reactant5-Bromo-1,3,4-thiadiazole-2-carbonitrileHCID 53388526—
Reactant5-Bromo-1,3,4-thiadiazole-2-carboxamideHCID 53388679—
SolventTetrahydrofuranHCID 8028—
ProductEthyl [5-(5-bromo-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetateHCID 59321687—

Reaction Steps

5-Bromo-1,3,4-thiadiazole-2-carbonitrile To a solution of 5-bromo-1,3,4-thiadiazole-2-carboxamide and Et3N (2.3 equiv) in THF (0.5 M) at 0° C. was added TFAA (1.1 equiv). The mixture was then warmed to room temperature and stirred for 30 min, then the solvent was evaporated in vacuo. The resulting residue was diluted with water. The resulting precipitate was collected, washed with water, and dried to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383643B2
Source datasetuspto-grants-2013_02
ORD IDord-ceded20fa0854a9f830da425584a44db
Source noteuspto-grants-2013_02