Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzyl Alcohol | HCID 244 | — |
| Reactant | Oxalic Acid | HCID 971 | — |
| Reactant | Oxalate | HCID 71081 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 13365126 | HCID 13365126 | — |
| Product | HCID 13365121 | HCID 13365121 | — |
Reaction Steps
30 ml of ethanol are added to the α-(α-methyl-3,4-dimethoxyphenethylimino)-2-methoxyacetophenone solution obtained in paragraph (2). After ice-cooling, 1.53 g of sodium borohydride is added gradually to the solution, and the mixture is stirred at room temperature for 2 hours. The reaction mixture is treated in the same manner as described in Example 1-(3), whereby α-[(α-methyl-3,4-dimethoxyphenethylamino)methyl]-2-methoxybenzylalcohol [the mixture of two diastereoisomers] is obtained as a crude oil. Said benzylalcohol [i.e., the mixture of two diastereoisomers] is treated with oxalic acid to convert it into its oxalate, and the oxalate is recrystallized from 70% aqueous ethanol. The crystalline precipitates are collected by filtration (the filtrate is hereinafter referred to as "mother liquor"). 4.5 g of α-[(α-methyl-3,4-dimethoxyphenethylamino)methyl]-2-methoxybenzylalcohol 1/2 oxalate [the diastereoisomer of M.p. 199°-200° C. (decomp.)] are thereby obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04490392 |
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| Source dataset | uspto-grants-1984_12 |
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| ORD ID | ord-1e9bb14b116f4264b8106a7e5ee1db4b |
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| Source note | uspto-grants-1984_12 |
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