Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Fumaric Acid | HCID 444972 | — |
| Reactant | HCID 14500442 | HCID 14500442 | — |
| Catalyst | Platinum oxide (PtO) | HCID 82844 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 14500421 | HCID 14500421 | 52.9% |
Reaction Steps
A solution of α-[(2,4-dimethylphenoxy)methyl]pyridine-2-methanol hydrochloride (10.0 g, 0.0347 mole) in 200 ml of methanol was hydrogenated at room temperature with 1.4 g of platinum oxide for 1/2 hr. The methanol solution was filtered and solvent removed on the rotary evaporator. The resulting material was dissolved in water, made basic with 10% sodium hydroxide and the free base was extracted into methylene chloride. Removal of methylene chloride on the rotary evaporator gave a yellow oil. While standing overnight the oil crystallized to give a white solid (softens 75°-78° C., 78°-90° C. m.p.). The free base was dissolved in methanol and treated with a methanol solution of an equimolar quantity of fumaric acid. A crystalline white solid was obtained by adding ether, and upon recrystallization from methanol-ethyl ether, 5.81 g (52.9%) of crystalline white product was obtained, m.p. 208°-212° C. with decomposition.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04835164 |
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| Source dataset | uspto-grants-1989_05 |
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| ORD ID | ord-4aaa797ff6134008a48b3ac299e0b548 |
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| Source note | uspto-grants-1989_05 |
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