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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 555851Generated: November 2, 2026

2,3-Dichloropyrazine → HCID 59351251, compound

https://huagongshe.com/reaction/555851

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-DichloropyrazineHCID 78575—
ReactantLithium HexamethyldisilazideHCID 2733832—
Reactant2H-Pyran-4-carboxylic acid, tetrahydro-, methyl esterHCID 2773520—
SolventTolueneHCID 1140—
ProductHCID 59351251HCID 59351251—

Reaction Steps

To a solution of 2,3-dichloropyrazine (1.45 g, 9.73 mmol) and methyl tetrahydro-2H-pyran-4-carboxylate (2.60 mL, 19.47 mmol) in Toluene (19.47 mL) at room temperature was added LiHMDS (19.47 mL, 19.47 mmol, 1M solution) dropwise. After overnight room temperature stirring, reaction was quenched with saturated NH4Cl solution and extracted with EtOAc. Purification by Biotage (0-10% MeOH/DCM) produced product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08053438B2
Source datasetuspto-grants-2011_11
ORD IDord-75f82819422b46fc8b05a967881a250b
Source noteuspto-grants-2011_11