Phosgene → HCID 22799517, compound
Reaction equation
[N+:1]([C:4]1[CH:5]=[C:6]([CH:23]=[CH:24][C:25]=1[NH:26][C:27](=[O:29])C)[CH2:7][C:8]([NH:19]C(C)=O)(C(OCC)=O)[C:9]([O:11]CC)=[O:10])([O-])=O.C(Cl)([Cl:32])=O>>[ClH:32].[N:26]1[C:27](=[O:29])[N:1]=[C:4]2[CH:5]=[C:6]([CH2:7][C@@H:8]([C:9]([OH:11])=[O:10])[NH2:19])[CH:23]=[CH:24][C:25]=12Participants
3
Procedure
Following the procedure for the production of the racemic mixture in Example 1, diethyl 2-(3-nitro-4-acetamidobenzyl)-2-acetaminomalonate is hydrolyzed and cyclized with phosgene to produce pure Example 3 title compound in 54% yield: m.p. 259° (decomp).
Sources & evidence
- ORD record
- ord-64719b00630a4d2cb7d76d4e3b39de22
- Source dataset
- uspto-grants-1978_01
- Patent number
- US04069333
Reaction notes
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