Water → 5-(4-Chloro-phenyl)-3-(4-nitro-benzyl)-3,6-dihydro[1,3,4]thiadiazin-2-one
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH2:13][S:12][C:11](=[O:14])[NH:10][N:9]=2)=[CH:4][CH:3]=1.Br[CH2:16][C:17]1[CH:22]=[CH:21][C:20]([N+:23]([O-:25])=[O:24])=[CH:19][CH:18]=1.C(=O)([O-])[O-].[K+].[K+].O>C(#N)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH2:13][S:12][C:11](=[O:14])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][C:20]([N+:23]([O-:25])=[O:24])=[CH:19][CH:18]=3)[N:9]=2)=[CH:6][CH:7]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 80 °C
Procedure
To a solution of the compound obtained in Step A (57.83 mmoles) in acetonitrile (260 ml) there are added 1-bromomethyl-4-nitro-benzene (63.61 mmoles) and potassium carbonate (231.32 mmoles). The reaction mixture is stirred at 80° C. for 1 hour under nitrogen. The reaction mixture is brought to ambient temperature and 100 ml of water are added. Extraction with ethyl ether (3×350 ml) is carried out and the organic phases are combined. The organic phase obtained is dried over sodium sulphate, filtered and evaporated to dryness. The solid is triturated in ethyl ether, filtered off and dried in vacuo to yield the title product, which is used directly in the next Step.
Workup
- customis brought to ambient temperature
- extractionExtraction with ethyl ether (3×350 ml)
- customThe organic phase obtained
- dry with materialis dried over sodium sulphate
- filtrationfiltered
- customevaporated to dryness
- customThe solid is triturated in ethyl ether
- filtrationfiltered off
- customdried in vacuo
Sources & evidence
- ORD record
- ord-b7a1cadc14884181b22ffced7c01135f
- Source dataset
- uspto-grants-2012_03
- Patent number
- US08133889B2
Reaction notes
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