1,1'-Thiocarbonyldiimidazole → HCID 9952107, compound
Reaction equation
[CH3:1][O:2][C:3](=[O:22])[C@H:4]([CH2:20][SH:21])[NH:5][CH2:6][C:7]([S:10][CH2:11][C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1)([CH3:9])[CH3:8].[C:23](N1C=CN=C1)(N1C=CN=C1)=[S:24]>C(Cl)(Cl)Cl>[CH3:19][O:18][C:15]1[CH:14]=[CH:13][C:12]([CH2:11][S:10][C:7]([CH3:9])([CH3:8])[CH2:6][N:5]2[C@H:4]([C:3]([O:2][CH3:1])=[O:22])[CH2:20][S:21][C:23]2=[S:24])=[CH:17][CH:16]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of N-[2-(4-methoxybenzylthio)-2-methylpropyl]-L-cysteine methyl ester (5.0 g) in chloroform (90 ml), thiocarbonyldiimidazole (3.0 g) was added and the mixture was stirred for 1 hr at room temperature. The reaction mixture was washed with 3N hydrochloric acid, water and then saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated in vacuo. The crude product was recrystallized from ethyl acetate to give 5.1 g (91%) of the titled compound.
Workup
- washThe reaction mixture was washed with 3N hydrochloric acid, water
- dry with materialsaturated sodium chloride solution, dried over anhydrous magnesium sulfate
- concentrationconcentrated in vacuo
- customThe crude product was recrystallized from ethyl acetate
Sources & evidence
- ORD record
- ord-582cbd7c56f44b3997d7facf5a900022
- Source dataset
- uspto-grants-1993_04
- Patent number
- US05202342
Reaction notes
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