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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873907Generated: October 30, 2026

4-Chlorobenzaldehyde → 5-(3-acetyl-2-(4-chlorophenyl)-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrol-1-yl)-3-chloro-1-methyl-pyridin-2(1H)-one

https://huagongshe.com/reaction/873907

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-ChlorobenzaldehydeHCID 7726—
ReactantEthyl 2,4-dioxovalerateHCID 69208—
Reactant5-Amino-3-chloro-1-methyl-1,2-dihydropyridin-2-oneHCID 71756073—
Product5-(3-acetyl-2-(4-chlorophenyl)-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrol-1-yl)-3-chloro-1-methyl-pyridin-2(1H)-oneHCID 117702763—

Reaction Steps

The title compound was prepared in analogy to the procedure described in Step 57.1 using 5-amino-3-chloro-1-methylpyridin-2(1H)-one (Step 5.2), 4-chlorobenzaldehyde and ethyl 2,4-dioxovalerate at 120° C. for 1 hr. tR: 3.73 min (HPLC 1); tR: 0.74 min (LC-MS 2); ESI-MS: 393/395 [M+H]+ (LC-MS 2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975417B2
Source datasetuspto-grants-2015_03
ORD IDord-9a0e10cc9b0647b48ba1a81976a9345a
Source noteuspto-grants-2015_03