Chloral → HCID 13341964, compound
Reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:13]=[C:9]([C:10]([NH2:12])=[O:11])[C:8]([NH2:14])=[CH:7][CH:6]=1)=[O:4].[O:15]=[CH:16][C:17]([Cl:20])([Cl:19])[Cl:18]>COCCOCCOC>[OH:15][CH:16]([NH:12][C:10](=[O:11])[C:9]1[C:8](=[CH:7][CH:6]=[C:5]([C:3]([O:2][CH3:1])=[O:4])[CH:13]=1)[NH2:14])[C:17]([Cl:20])([Cl:19])[Cl:18]Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
5-Methoxycarbonylanthranilamide (1.0 g.) anhydrous chloral (5 ml.) and bis(2-methoxyethyl) ether (20 ml.) were heated together on a steam bath for 20 minutes, then evaporated to dryness under reduced pressure. The residue solidified on stirring with diethyl ether, and it was filtered off and purified by chromatography on silica gel (250 g.). The column was eluted with a mixture of ethyl formate and toluene (7:3 by volume), and 50 ml. fractions were collected. Fractions 10 to 13 were combined and evaporated to dryness, and the residue solidified on stirring with petroleum ether (b.p. 60°-80° C.) to give the required starting material, N-(1-hydroxy-2,2,2-trichloroethyl)-5-methoxycarbonylanthranilamide, m.p. 93° C. (with decomposition).
Workup
- customevaporated to dryness under reduced pressure
- filtrationwas filtered off
- custompurified by chromatography on silica gel (250 g.)
- washThe column was eluted with a mixture of ethyl formate and toluene (7:3 by volume), and 50 ml
- customfractions were collected
- customevaporated to dryness
- stirringthe residue solidified on stirring with petroleum ether (b.p. 60°-80° C.)
Sources & evidence
- ORD record
- ord-cadc9b107e524ba5bc664a4f492372d9
- Source dataset
- uspto-grants-1981_05
- Patent number
- US04268510
Reaction notes
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