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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 322867Generated: October 30, 2026

Hydrochloric Acid → HCID 22010166, compound

https://huagongshe.com/reaction/322867

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 54489194HCID 54489194—
SolventWaterHCID 962—
ProductHCID 22010166HCID 2201016649.6%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of methyl (RS)-5-(3-benzyloxy-phenyl)-4-(3-methylpyrid-4-yl)-5-oxopentanoate (3.26 g), dioxan (50 mL), water (9 mL) and concentrated hydrochloric acid (6 mL) is stirred at 60° C. for 1 hour and then evaporated to dryness under reduced pressure. The residue is treated with saturated aqueous sodium bicarbonate solution to give a solution of pH 7 and extracted with ethyl acetate. Evaporation, followed by crystallisation from a mixture of ethyl acetate and pentane affords (RS)-5-(3-benzyloxyphenyl)-4-(3-methylpyrid-4-yl)-5-oxopentanoic acid (1.56 g) in the form of a cream coloured solid, m.p. 55-57° C. [Elemental analysis:- C,73.7;H,5.92; N,3.41%. Calculated:- C,74.0;H,5.95;N,3.60%].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211234B1
Source datasetuspto-grants-2001_04
ORD IDord-4a60fc5284b64333b9a040ceb9779ea5
Source noteuspto-grants-2001_04