Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 86748126 | HCID 86748126 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86748125 | HCID 86748125 | 87.6% |
Reaction Steps
A mixture of (E)-alpha-(dimethylhydrazono)-4-[2-(2-naphthalenyloxy)ethoxy]benzeneacetic acid methyl ester (0.45 g) in warm methanol (3 mL) and tetrahydrofuran (10 mL) was treated with 1N sodium hydroxide (2 mL), heated on the steam bath for one hour, and the mixture was diluted with water and concentrated to remove the organic solvents. The residue was acidified with excess hydrochloric acid and extracted with dichloromethane containing a little tetrahydrofuran. The organic layer was washed with water, dried (Na2SO4), filtered and evaporated to give crude product. Crystallization from dichloromethane-hexane provided 0.38 g of pure (E)-alpha-(dimethylhydrazono)-4-[2-(2-naphthalenyloxy)ethoxy]benzeneacetic acid as a colorless solid, mp 135° C. with decomposition.
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-4d6afea625484c1db046e47a205b9b67 |
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| Source note | uspto-grants-1994_09 |
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