Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Cornforth reagent | HCID 2724130 | — |
| Reactant | HCID 18650779 | HCID 18650779 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86744724 | HCID 86744724 | 55% |
Reaction Steps
To a stirred solution of (E)-methyl 2-[2-(3-hydroxymethylphenoxy)pyridin-3-yl]-3-methoxypropenoate (0.250 g) in dichloromethane (5 ml) at room temperature was added pyridinium dichromate (0.414 g). After stirring for 3 hours, GC analysis of an aliquot indicated the absence of starting material. Water was added and stirring continued for 10 minutes. The reaction mixture was filtered (filter washed through with water (5 ml) and dichloromethane (5 ml)) and then further diluted with dichloromethane (5 ml). The organic layer was separated and the aqueous phase further extracted with dichloromethane (×3). The combined organic layers were dried, filtered and evaporated to give a dark yellow oil. Chromatography on silica gel (eluent ether-petroleum ether, 7:3) afforded (E)-methyl 2-[2-(3-formylphenoxy)pyridin-3-yl]-3-methoxypropenoate (0.136g, 55%) as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05158954 |
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| Source dataset | uspto-grants-1992_10 |
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| ORD ID | ord-a2c98a77140c46d186eceb77c42d00c9 |
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| Source note | uspto-grants-1992_10 |
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