Reaction equation
[C:1]1([CH:7]=[C:8]2[C:13](=O)[C:12](=[CH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH2:11][S:10][CH2:9]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:22][N:23]([CH3:29])[CH2:24][CH2:25][CH2:26][NH:27][NH2:28]>CO>[CH3:22][N:23]([CH3:29])[CH2:24][CH2:25][CH2:26][N:27]1[CH:7]([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH:8]2[CH2:9][S:10][CH2:11][C:12](=[CH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[C:13]2=[N:28]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Tetrahydro-3,5-bis-(phenylmethylene)-4H-thiopyran-4-one (5g) is refluxed with 2.1g of 3-dimethylaminopropylhydrazine in 50ml of methanol for 4 hours. The solvent is evaporated off and the residue is crystallized from 30ml of acetonitrile to yield 3.9g of the title compound, melting point 83°-85°C.
Workup
- customThe solvent is evaporated off
- customthe residue is crystallized from 30ml of acetonitrile
Sources & evidence
- ORD record
- ord-7f2e1e94eb4a467eae75aab2063d6861
- Source dataset
- uspto-grants-1976_06
- Patent number
- US03962222
Linked notes
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