HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2225673Generated: October 30, 2026
Sodium hydride → alpha-Oxo-4-[[(4phenoxy)butyl]oxy]benzeneacetic acid methyl ester
https://huagongshe.com/reaction/2225673
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | (4-Bromobutoxy)benzene | HCID 70986 | — |
| Reactant | Benzeneacetic acid, 4-hydroxy-alpha-oxo-, methyl ester | HCID 3084696 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | alpha-Oxo-4-[[(4phenoxy)butyl]oxy]benzeneacetic acid methyl ester | HCID 54438110 | 64.4% |
Reaction Steps
A stirred mixture of 4-hydroxy-alpha-oxobenzeneacetic acid methyl ester (0.724 g) in dimethylformamide (10 mL) under argon was treated with 55% sodium hydride (0.175 g), stirred for 15 minutes and treated with (4-bromobutoxy)benzene (1.37 g). The mixture was heated at 60° C. overnight and worked up as in Example 20. The material from dichloromethane extraction was purified by HPLC (dichloromethane-hexane; 3:1) and crystallized from dichloromethane-hexane to provide 0.85 g of alpha-oxo-4-[[(4phenoxy)butyl]oxy]benzeneacetic acid methyl ester, mp 57°-59°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05344843 |
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| Source dataset | uspto-grants-1994_09 |
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| ORD ID | ord-4310132803b2488bbfc24d1834f06ea2 |
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| Source note | uspto-grants-1994_09 |
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