1,2,4-Oxadiazol-3-amine, 5-((2,6-dichlorophenyl)methyl)- → HCID 54050783, compound
Reaction equation
[NH2:1][C:2]1[N:6]=[C:5]([CH2:7][C:8]2[C:13]([Cl:14])=[CH:12][CH:11]=[CH:10][C:9]=2[Cl:15])[O:4][N:3]=1.[CH:16]([O-])([O-])[O:17][CH2:18][CH3:19]>>[CH2:18]([O:17][CH:16]=[N:1][C:2]1[N:6]=[C:5]([CH2:7][C:8]2[C:13]([Cl:14])=[CH:12][CH:11]=[CH:10][C:9]=2[Cl:15])[O:4][N:3]=1)[CH3:19]Participants
3
Procedure
1 g of 3-amino-5-(2,6-dichlorobenzyl)-1,2,4-oxadiazole is heated in air at 150° C. for 3 hours with a few ml of ethyl orthoformate in an amount which is just sufficient to ensure slight agitation. The excess ethyl orthoformate is driven off under reduced pressure. The residue is crystallised from ether.
Workup
- customThe residue is crystallised from ether
Sources & evidence
- ORD record
- ord-614384af29274804a55aacaf18eba29c
- Source dataset
- uspto-grants-1980_12
- Patent number
- US04242352
Reaction notes
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