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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980473Generated: October 27, 2026

Sulfuric Acid → 2-(3,4-Dihydroxybutyl)pyrazine

https://huagongshe.com/reaction/980473

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantPotassium PermanganateHCID 516875—
ReactantPropan-2-one--water (1/1)HCID 18366337—
ReactantPyrazine, 3-butenyl-HCID 22477625—
SolventWaterHCID 962—
Product2-(3,4-Dihydroxybutyl)pyrazineHCID 20221617—

Reaction Conditions

Temperature5 °C

Reaction Steps

4.15 g of 4-(2-pyrazinyl)-1-butene (1300) was dissolved in 100 ml of 1:1 water/acetone and cooled to 5° C. To this was slowly added a solution of 3.60 g of potassium permanganate in 300 ml of water. This was kept at 5° C. for 18 hours and then allowed to stir for 4 hours at R.T. It was adjusted to pH 7 with 5% H2SO4, filtered through celite and concentrated. Continuous extraction with chloroform for 2 days followed by evaporation of the solvent left 4.27 g of product (1400) which was distilled under vacuum, b.p. 174°-5° (0.2 mm). UV H2O max: 268 (3.76), 272 (3.76).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04638005
Source datasetuspto-grants-1987_01
ORD IDord-c86746fcab3b431386b33e44e93f4462
Source noteuspto-grants-1987_01