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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2415114Generated: November 1, 2026

Water → HCID 22640352, compound

https://huagongshe.com/reaction/2415114

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 466102—
ReactantHCID 22640384HCID 22640384—
SolventMethanolHCID 887—
ProductHCID 22640352HCID 22640352—

Reaction Steps

The above prepared 2-(6-[1,3]dioxolan-2-yl-8-ethoxy-2,2-dimethyl-2H-chromen-4-yl)-propan-2-ol was dissolved in 6 ml of methanol and 3 ml of water and treated with 54 mg of pyridinium p-toluenesulfonate. After 15 min. at room temperature, the reaction mixture was poured onto crushed ice/AcOEt, the organic layer washed with water, dried over magnesium sulfate and evaporated to dryness. Flash chromatography (SiO2 with n-hexane/AcOEt=7/3) yielded 194 mg of the title compound as colourless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06818649B2
Source datasetuspto-grants-2004_11
ORD IDord-8cfef682edb547e7b14ee5a9c7b88276
Source noteuspto-grants-2004_11