Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Benzeneacetic acid, 4-hydroxy-alpha-oxo-, methyl ester | HCID 3084696 | — |
| Reactant | 2-(3-Bromo-1-propenyl)naphthalene | HCID 54104358 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 67757685 | HCID 67757685 | 48.9% |
Reaction Steps
A stirred mixture of 4-hydroxy-alpha-oxobenzeneacetic acid methyl ester (1.01 g) in dimethylformamide (10 mL) under argon was treated with 55% sodium hydride (0.262 g), stirred for 15 minutes and treated with 2-(3-bromo-1-propenyl)naphthalene (1.7 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; 4:1) and crystallized from dichloromethane-diethyl ether to provide 0.95 g of (E)-4-[[3-(2-naphthalenyl)-2-propenyl]oxy]-alpha-oxobenzeneacetic acid methyl ester, mp 100°-102° 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-304ac4a2ce324b9cb2ddba8e3a670b26 |
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| Source note | uspto-grants-1994_09 |
|---|
