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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1868450Generated: November 2, 2026

Methyl acetoacetate → HCID 136393284, compound

https://huagongshe.com/reaction/1868450

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
ReactantPiperidineHCID 8082—
Reactant2,4-DichlorobenzaldehydeHCID 13404—
Reactant3,5-Diamino-1,2,4-triazoleHCID 15078—
SolventTetrahydrofuranHCID 8028—
SolventHeptaneHCID 8900—
ProductHCID 136393284HCID 136393284—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a stirred solution of 1H-1,2,4-triazole-3,5-diamine (1.0 g, 10.1 mmol), methyl 3-oxobutanoate (1.17 g, 10.1 mmol), and 2,4-dichlorobenzaldehyde (1.35 g, 10.1 mmol) in THF (30 mL) and heptane (8 mL) was added piperidine (30 mg, 0.3 mmol) and the reaction was heated to 70° C. for 2 days. The reaction was concentrated to afford crude methyl 2-amino-7-(2,4-dichlorophenyl)-5-methyl-4,7-dihydro-[1,2,4]-triazolo[1,5-a]pyrimidine-6-carboxylate as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07635699B2
Source datasetuspto-grants-2009_12
ORD IDord-602fa7dc02fc47369f121972f3e5f251
Source noteuspto-grants-2009_12