5-(4-Chlorophenyl)-2-hydrazinopyridine → HCID 20333397, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[CH:10][C:11]([NH:14][NH2:15])=[N:12][CH:13]=2)=[CH:4][CH:3]=1.[CH:16]([O-])([O-])OCC>>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[CH:10][C:11]3[N:12]([CH:16]=[N:15][N:14]=3)[CH:13]=2)=[CH:4][CH:3]=1Participants
3
Procedure
A mixture of 8.5 g. of 5-(4-chlorophenyl)-2-hydrazinopyridine and 80.0 ml. of ethyl orthoformate is refluxed for 5 hours. The mixture is filtered and the solid is washed with hexane to give 6.5 g. of the product of the Example, m.p. 259°-262° C.
Workup
- additionA mixture of 8.5 g
- filtrationThe mixture is filtered
- washthe solid is washed with hexane
- customto give 6.5 g
Sources & evidence
- ORD record
- ord-ae12a02c2f8d48fd94c9e19c4b51b320
- Source dataset
- uspto-grants-1980_06
- Patent number
- US04209626
Reaction notes
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