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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 907546Generated: October 30, 2026

Acetic Acid → HCID 67387573, compound

https://huagongshe.com/reaction/907546

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant4-HydroxymethylpyridineHCID 11472—
ReactantLithium diisopropylamideHCID 2724682—
ReactantHCID 86616580HCID 86616580—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67387573HCID 6738757381.8%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 4-pyridylcarbinol (0.44 mmol, 45 mg) and anhydrous tetrahydrofuran (3 ml) cooled at 0° C. was added LDA (2M, 0.6 mmol, 300 ul). The mixture was stirred at 0° C. for 15 minutes. A solution of 3′-Chloro-5′,6′-dicyano-2,3,5,6-tetrahydro-[1,2′]bipyrazinyl-4-carboxylic acid tert-butyl ester (0.29 mmol, 100 mg) in THF (2 ml) was then added to the cold mixture and stirred at 0° C. for 1 hour. Reaction mixture was poured onto 0.5M acetic acid and extracted with ethyl acetate. The crude product was purified by column chromatograph on silica using 70% EtOAc/hexanes to yield product 5′,6′-Dicyano-3′-(pyridin-4-ylmethoxy)-2,3,5,6-tetrahydro-[1,2′]bipyrazinyl-4-carboxylic acid tert-butyl ester (100 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08013156B2
Source datasetuspto-grants-2011_09
ORD IDord-75292c197f004ec39d8049fc9af421bd
Source noteuspto-grants-2011_09