Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1935748Generated: November 1, 2026

Methanesulfonic Acid → HCID 178420078, compound

https://huagongshe.com/reaction/1935748

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonic AcidHCID 6395—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178479685HCID 178479685—
SolventWaterHCID 962—
ProductHCID 178420078HCID 178420078—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 1-(1H-imidazol-4-yl)-4,4-diphenylbutan-1-ol hydrochloride (2.0 g) and methanesulfonic acid (40 ml) was heated at 100° C. for 40 minutes. The cooled reaction mixture was poured into water and was made alkaline with sodium hydroxide solution. The product was extracted into ethyl acetate, which was washed with water, dried with sodium sulfate and evaporated under reduced pressure to give a crude product of racemic cis and trans diastereomers. The product was purified by flash chromatography (elution with a dichloromethane—methanol gradient). The base product was dissolved in ethyl acetate and converted to its hydrochloride salt with hydrogen chloride gas.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06388090B2
Source datasetuspto-grants-2002_05
ORD IDord-55c9151904b94131abe3c239254677d2
Source noteuspto-grants-2002_05