Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzaldehyde | HCID 240 | — |
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | (+-)-Methionine | HCID 876 | — |
| Reactant | D-methionine hydrochloride | HCID 9942337 | — |
| Solvent | Propionic Acid | HCID 1032 | — |
| Product | 37622-81-4 | HCID 10219725 | 103.3% |
Reaction Steps
A mixture of 3 g of D-methionine hydrochloride, 50 ml of propionic acid, 0.48 g of DL-methionine (0.2 mole per mole of D-methionine hydrochloride) and 0.16 ml of benzaldehyde (0.1 mole per mole of D-methionine hydrochloride) was stirred at 100° C. for 2 hours. After the reaction, 0.34 g of 35% hydrochloric acid was added to the mixture, and said mixture was ice-cooled. The crystalline precipitates were collected by filtration, and then washed with acetone. 3.10 g of DL-methionine hydrochloride were thereby obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04401820 |
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| Source dataset | uspto-grants-1983_08 |
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| ORD ID | ord-3cb96afc4b0b46a596e5e727d99f4cc7 |
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| Source note | uspto-grants-1983_08 |
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