Diphosgene → HCID 10199250, compound
Reaction equation
Cl[C:2]([O:5]C(Cl)=O)(Cl)Cl.CO[N:11]([C:24](=[O:31])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[N:12]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:13]([O:15]CC)=O>O1CCCC1>[CH3:2][O:5][C:30]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1[C:24]1[O:31][C:13](=[O:15])[N:12]([C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=2)[N:11]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
3,2 ml of trichloromethylchloroformate (diphosgene) are added, with stirring, to a solution of 6,3 g of ethyl N′-methoxybenzoyl-N-phenyl-hydrazine-carboxylate in anhydrous tetrahydrofuran at ambient temperature. After one hour's stirring at ambient temperature the solvent is distilled off in vacuo and the residue remaining is recrystallised from ethanol. Yield: 6.5 g (96%), melting point: 112-115° C.
Workup
- distillationis distilled off in vacuo
- customthe residue remaining is recrystallised from ethanol
Sources & evidence
- ORD record
- ord-6aa03d849262480b9fbc0eb1166fd49d
- Source dataset
- uspto-grants-2001_07
- Patent number
- US06255327B1
Reaction notes
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