Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Methanesulfonate | HCID 85257 | — |
| Reactant | Benzeneacetic acid, 4-hydroxy-alpha-oxo-, methyl ester | HCID 3084696 | — |
| Reactant | HCID 19004316 | HCID 19004316 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 54406942 | HCID 54406942 | 39.4% |
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 the mesylate prepared from 4-(2-naphthylthio)butanol (1.55 g). The mixture was stirred and heated under argon 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 diethyl etherhexane to provide 0.625 g of 4-[[4-(2-naphthalenylthio)butyl]oxy]-alpha-oxobenzeneacetic acid methyl ester, mp 64°-65° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05344843 |
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| Source dataset | uspto-grants-1994_09 |
|---|
| ORD ID | ord-a950eaa11d9949bd8d402615bab79114 |
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| Source note | uspto-grants-1994_09 |
|---|
