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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1774112Generated: November 2, 2026

1H-1,2,4-Triazole → HCID 178474427, compound

https://huagongshe.com/reaction/1774112

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-1,2,4-TriazoleHCID 9257—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 178474466HCID 178474466—
SolventAcetonitrileHCID 6342—
ProductHCID 178474427HCID 17847442799.1%

Reaction Steps

To a mixture of 2-acetamido-6-bromo-4-hydroxy-quinazoline (2.82 g, 10 mmol) and 1,2,4-triazole (6.9 g, 100 mmol) in acetonitrile (100 ml) was added diisopropylethylamine (3.5 ml, 30 mmol) and POCl3 (2.8 ml, 30 mmol). The mixture was stirred at room temperature for 12 hours. The precipitate was collected, washed with ethanol, diethylether, and dried over P2O5 in a vacuum dessicator to yield the title compound as yellow solid (3.3 g). The crude product was used in the following reaction without further purification and was characterized by its mass spectrum as follows: MS (m/z): 333 ([M+H]+, 100).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09259426B2
Source datasetuspto-grants-2016_02
ORD IDord-1e573491a3b7449e8ce69c6ab911b0f0
Source noteuspto-grants-2016_02