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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4452Generated: October 29, 2026

Sulfuric Acid → HCID 178418516, compound

https://huagongshe.com/reaction/4452

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantDiethyl octylmalonateHCID 252340—
ReactantSodiumHCID 5360545—
ReactantSodium MethoxideHCID 10942334—
ReactantHCID 70415390HCID 70415390—
SolventMethanolHCID 887—
ProductHCID 178418516HCID 178418516—

Reaction Steps

Pour 1.15 g sodium metal, and 33 ml dry methanol into 100 ml four-mouth flask; add 5 g of optically active (s)-4-(6-methyloctyloxy)benzamidine hydrochloric acid salt, then pour 4.55 g of diethyl n-octylmalonate into this sodium methylate solution and then allow to react for 18 hours under heat and reflux conditions. After cooling, acidify the mixture utilizing concentrated sulfuric acid, and extract the crystals. The impure crystals are purified, and then optically active 6.32 g of (s)-5-n-octyl-2-[4-(6methyloctyloxy)phenyl]-4,6-dihydroxy-pyrimidine is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04725688
Source datasetuspto-grants-1988_02
ORD IDord-1ff5c11c42b04a318b57cf8f518bbb02
Source noteuspto-grants-1988_02