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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1627738Generated: November 2, 2026

Chloride → 5,8-Dimethyl-2-[2-(2-methyl-5-phenyl-2H-[1,2,4]triazol-3-yl)-ethyl]-[1,2,4]triazolo[1,5-a]pyrazine

https://huagongshe.com/reaction/1627738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorideHCID 312—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant1-Methyl-3-phenyl-1H-1,2,4-triazole-5-carbaldehydeHCID 13224143—
Reactant(5,8-Dimethyl-[1,2,4]triazolo[1,5-a]pyrazin-2-ylmethyl)-triphenyl-phosphoniumHCID 59151223—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
Product5,8-Dimethyl-2-[2-(2-methyl-5-phenyl-2H-[1,2,4]triazol-3-yl)-ethyl]-[1,2,4]triazolo[1,5-a]pyrazineHCID 53235525—

Reaction Steps

1,8-Diazabicyclo[5.4.0]undec-7-ene (0.16 mL, 1.07 mmol) was added to a stirred suspension of (5,8-Dimethyl-[1,2,4]triazolo[1,5-a]pyrazin-2-ylmethyl)-triphenyl-phosphonium; chloride (0.490 g, 1.07 mmol) and 2-Methyl-5-phenyl-2H-1,2,4-triazole-3-carbaldehyde (0.200 g, 1.07 mmol) in Tetrahydrofuran (6.9 mL) in dry THF (8 mL) and the mixture was stirred at room temperature under an atmosphere of Argon overnight. DCM (50 ml) was added and the organic phase was extracted with water (2×50 ml), dried (MgSO4) and the solvent was evaporated off.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785653B2
Source datasetuspto-grants-2014_07
ORD IDord-b309449ad3b64717b8130c7e01c47186
Source noteuspto-grants-2014_07