Phosgene → HCID 67063139, compound
Reaction equation
[CH2:1]([NH:3][C:4]1[C:9]([CH2:10][NH:11][C:12]2[CH:17]=[CH:16][C:15]([F:18])=[C:14]([N+:19]([O-:21])=[O:20])[CH:13]=2)=[CH:8][N:7]=[C:6]([S:22][CH3:23])[N:5]=1)[CH3:2].CCN(CC)CC.[C:31](Cl)(Cl)=[O:32]>C(Cl)Cl.O.C(OCC)(=O)C>[CH2:1]([N:3]1[C:4]2=[N:5][C:6]([S:22][CH3:23])=[N:7][CH:8]=[C:9]2[CH2:10][N:11]([C:12]2[CH:17]=[CH:16][C:15]([F:18])=[C:14]([N+:19]([O-:21])=[O:20])[CH:13]=2)[C:31]1=[O:32])[CH3:2]Participants
7
Reactant 3
Product 1
Reagents, catalysts & solvents 3
Procedure
To a suspension of N-ethyl-5-((4-fluoro-3-nitrophenylamino)methyl)-2-(methylthio)pyrimidin-4-amine (2.20 g, 6.5 mmol) in CH2Cl2 (25 mL) was added Et3N (2.7 mL, 20 mmol) followed by phosgene (20% solution in toluene, 4.3 mL, 7.8 mmol). The reaction mixture was stirred for 2 h at RT and then diluted with water. The organic layer was separated and washed with brine, dried (MgSO4) and concentrated to provide an orange yellow solid, which on stirring in ethyl acetate followed by filtration provided 1-ethyl-3-(4-fluoro-3-nitrophenyl)-7-(methylthio)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one as a light yellow solid.
Workup
- customThe organic layer was separated
- washwashed with brine
- dry with materialdried (MgSO4)
- concentrationconcentrated
- customto provide an orange yellow solid, which
- filtrationfollowed by filtration
Sources & evidence
- ORD record
- ord-b05303f5b36a4264abc3016efd5495bd
- Source dataset
- uspto-grants-2011_03
- Patent number
- US07897762B2
Reaction notes
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