Chloro-N,N-dimethylformiminium chloride → HCID 15463651, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[N:9]([CH:10]=1)[C:8](=[O:11])[C:7]1[C:12]([OH:20])=[C:13]([CH2:17][CH2:18][CH3:19])[C:14]([OH:16])=[CH:15][C:6]=1[O:5]2.[Cl-].Cl[CH:23]=[N+:24]([CH3:26])[CH3:25].C([BH3-])#N.[Na+]>C(Cl)Cl.CO>[Cl:1][C:2]1[CH:3]=[C:4]2[N:9]([C:10]=1[CH2:23][N:24]([CH3:26])[CH3:25])[C:8](=[O:11])[C:7]1[C:12]([OH:20])=[C:13]([CH2:17][CH2:18][CH3:19])[C:14]([OH:16])=[CH:15][C:6]=1[O:5]2Participants
6
Procedure
To 60 mg (0.20 mmol) of 2-chloro-6,8-dihydroxy-7-propyl-9H-pyrrolo [2,1-b][1,3]benzoxazin-9-one in 20 mL of CH2Cl2 was added 157 mg (1.22 mmol) of chloromethylene dimethylammonium chloride and the reaction stirred for 1 hr. The mixture was concentrated, diluted with 50 mL of dry MeOH and 1.0 g (15.9 mmol) of sodium cyanoborohydride was added. After 24 hr the mixture was quenched with saturated NaHCO3 and the mixture extracted with ethylacetate which was dried (Na2SO4) and concentrated. The residue was purified by column chromatography (Silica Gel EtOAc 100% to acetone 100%) to give 50 mg of the title compound.
Workup
- concentrationThe mixture was concentrated
- additionwas added
- customAfter 24 hr the mixture was quenched with saturated NaHCO3
- extractionthe mixture extracted with ethylacetate which
- dry with materialwas dried (Na2SO4)
- concentrationconcentrated
- customThe residue was purified by column chromatography (Silica Gel EtOAc 100% to acetone 100%)
Sources & evidence
- ORD record
- ord-8e8b96411cb84db0bd3fa293c46f4439
- Source dataset
- uspto-grants-2000_05
- Patent number
- US06057315
Reaction notes
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