HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 322867Generated: October 30, 2026
Hydrochloric Acid → HCID 22010166, compound
https://huagongshe.com/reaction/322867
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1,4-Dioxane | HCID 31275 | — |
| Reactant | HCID 54489194 | HCID 54489194 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 22010166 | HCID 22010166 | 49.6% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06211234B1 |
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| Source dataset | uspto-grants-2001_04 |
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| ORD ID | ord-4a60fc5284b64333b9a040ceb9779ea5 |
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| Source note | uspto-grants-2001_04 |
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