Ethanol → HCID 178525838, compound
Reaction equation
C([N:6]([CH3:13])[NH:7][C:8]([NH:10][CH:11]=O)=[S:9])(OCC)=O.[OH-:14].[K+].S(=O)(=O)(O)O.[CH2:21]([OH:23])C>>[C:21]([CH2:11][N:10]1[CH:13]=[N:6][N:7]=[C:8]1[SH:9])([OH:23])=[O:14]Participants
5
Procedure
1-carbethoxy-methyl-4-formylthiosemicarbazide (0.50 g., 2.44 mmol.) was dissolved in 5 ml. of ethanol and 5 ml. (2 equivalents) of aqueous potassium hydroxide solution was added. The reaction mixture was refluxed for five hours then cooled, acidified to pH 2.0 with 6N sulfuric acid and evaporated to dryness. The residue was extracted with acetone to give 4-carboxymethyl-1,2,4-triazole-3-thiol.
Workup
- temperatureThe reaction mixture was refluxed for five hours
- temperaturethen cooled
- customevaporated to dryness
- extractionThe residue was extracted with acetone
Sources & evidence
- ORD record
- ord-f32c3d8c8a324b8da3ac5324153c0116
- Source dataset
- uspto-grants-1977_11
- Patent number
- US04060610
Reaction notes
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