Acetic Anhydride → HCID 86733628, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12](=[O:13])[CH2:11][S:10][C:9]2=[S:14])=[CH:4][CH:3]=1.C(C(CC)(CC)C([O-])([O-])[O-])C.[C:26]([O:29][C:30](=O)[CH3:31])(=O)[CH3:27]>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[C:12](=[O:13])[C:11](=[C:26]([O:29][CH2:30][CH3:31])[CH3:27])[S:10][C:9]2=[S:14])=[CH:6][CH:7]=1Participants
4
Procedure
A mixture of 50 g. (0.2 m.) of the above-prepared rhodanine and 140 g. (0.86 m.) of triethylorthoacetate in 350 ml. of acetic anhydride is refluxed for four hours. The cooled reaction solution is filtered and the product is washed with 100 ml. of 70% aqueous acetic acid to yield 3-(4'-chlorophenyl)-5-(1'-ethoxyethylidene)-rhodanine, m.p. 168°-171°C.
Workup
- additionA mixture of 50 g
- customThe cooled reaction solution
- filtrationis filtered
- washthe product is washed with 100 ml
Sources & evidence
- ORD record
- ord-d4caa5e4fd9541e895e3826e886540c3
- Source dataset
- uspto-grants-1976_06
- Patent number
- US03966942
Reaction notes
Loading…