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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 861992Generated: October 30, 2026

Ethyl bromopyruvate → Ethyl 6-chloro-5-[(diethoxyphosphinyl)methyl]imidazo[1,2-a]pyridine-2-carboxylate

https://huagongshe.com/reaction/861992

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromopyruvateHCID 66144—
ReactantDiethyl [(6-amino-3-chloro-2-pyridinyl)methyl]phosphonateHCID 86752043—
SolventEthanolHCID 702—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductEthyl 6-chloro-5-[(diethoxyphosphinyl)methyl]imidazo[1,2-a]pyridine-2-carboxylateHCID 1970139713%

Reaction Steps

Following the procedure for Example 17, the residue from Example 28 was combined with ethyl bromopyruvate (0.468 g, 2.4 mmol) in DME (25 mL). After the resulting salt was refluxed in abs EtOH (30 mL) for 6 h, workup and puricication produced 0./114 g (13% of title compound).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05716964
Source datasetuspto-grants-1998_02
ORD IDord-277790dcd3c24a0ba46626ad1f117d97
Source noteuspto-grants-1998_02