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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2086833Generated: October 30, 2026

Dichloromethane → HCID 22724063, compound

https://huagongshe.com/reaction/2086833

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantAcetic AnhydrideHCID 7918—
ReactantTriethylamineHCID 8471—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 131723420HCID 131723420—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
ProductHCID 22724063HCID 22724063—

Reaction Steps

A mixture of 2-benzyl-4-(3-hydroxyphenyl-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (135 mg), acetic anhydride (84 mg), triethylamine (83 mg) and 4-dimethylaminopyridine (5 mg) in dichlormethane (2 ml) was stirred at room temperature for 1 hour. The mixture was poured into ethyl acetate and washed with water and brine, dried over magnesium sulfate and concentrated. The solids were collected and washed with isopropyl ether to give 4-(3-acetoxyphenyl)-2-benzyl-3-oxo-3,4-dihydropyrido[2,3-b]-pyrazine (90 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06727245B2
Source datasetuspto-grants-2004_04
ORD IDord-9a2c602de1f04113a33d7538a74e400a
Source noteuspto-grants-2004_04