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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1742128Generated: November 3, 2026

Ammonia → HCID 19009986, compound

https://huagongshe.com/reaction/1742128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactanto-(Trifluoromethyl)benzaldehydeHCID 123067—
ReactantBenzyl acetoacetateHCID 142266—
SolventMethanolHCID 887—
ProductHCID 19009986HCID 1900998676%

Reaction Conditions

Temperature90 °C

Reaction Steps

In a 7% ammonia solution in methanol were dissolved 2.6 g of o-trifluoromethylbenzaldehyde and 5.8 g of benzyl acetoacetate, and the solution was stirred in a closed tube at 90° C. for 10 hours. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (methanol/dichloromethane=1/50) to obtain 6.0 g (yield: 76%) of dibenzyl 1,4-dihydro-2,6-dimethyl-4-(2-trifluoromethylphenyl)-3,5-pyridinedicarboxylate as a yellow oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05336774
Source datasetuspto-grants-1994_08
ORD IDord-9ee46cc84a4447f9a554d5e96d373287
Source noteuspto-grants-1994_08