Methanol → HCID 45261143, compound
Reaction equation
Cl.[NH2:2][C:3]1[CH:8]([C:9]([OH:11])=[O:10])[CH2:7][CH2:6][CH2:5][N:4]=1.S(Cl)([Cl:14])=O.[CH3:16]O>>[ClH:14].[NH2:2][C:3]1[CH:8]([C:9]([O:11][CH3:16])=[O:10])[CH2:7][CH2:6][CH2:5][N:4]=1Participants
4
Procedure
2-Amino-3,4,5,6-tetrahydropyridine-3-carboxylic acid HCl (1.2 g, 6.6 mmol) was suspended in anhydrous methanol (100 ml), and thionyl chloride (0.5 ml, 7 mmol) was added dropwise with stirring at room temperature. The resulting solution was refluxed overnight and then evaporated to dryness in vacuo. The resulting crude white solid was recrystallized from methanol/ether to give white crystals 613 mg (46%) mp 138°-139° C., identified as product by 300MHz nmr and ir 1737 cm-1. Calculated: C 43.64, H 6.8, N 14.55; found: C 43.75, H 6.87, N 14.57.
Workup
- temperatureThe resulting solution was refluxed overnight
- customevaporated to dryness in vacuo
- customThe resulting crude white solid was recrystallized from methanol/ether
Sources & evidence
- ORD record
- ord-9e0f450b2a1a41b8b6361fe3424e2299
- Source dataset
- uspto-grants-1995_04
- Patent number
- US05403845
Reaction notes
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