Dichloromethane → HCID 19898862, compound
Reaction equation
Cl.Cl[CH2:3][C:4]1[CH:9]=[C:8]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[CH:7]=[CH:6][N:5]=1.[NH:16]1[CH2:20][CH2:19][CH2:18][CH2:17]1.[OH-].[K+].ClCCl>O>[C:10]1([C:8]2[CH:7]=[CH:6][N:5]=[C:4]([CH2:3][N:16]3[CH2:20][CH2:19][CH2:18][CH2:17]3)[CH:9]=2)[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
The product from stage (i) (14.0 g) was added to a solution of pyrrolidine (17.0 ml) in water (80 ml) at 22°. The solution was stirred for 1 h at 22° and then potassium hydroxide (40 g), dichloromethane (200 ml) and water (200 ml) were added. The mixture was stirred for 0.25 h and the phases were separated. The aqueous phase was extracted with dichloromethane (100 ml) and the combined organic extracts were washed with water (2×100 ml), saturated brine, dried and evaporated to leave an oil (15.2 g), a portion of which (0.5 g) was purified by flash chromatography eluting with dichloromethane, ethanol and ammonia (200:8:1) to give the title compound as an oil (0.4 g). T.l.c. Silica (Dichloromethane, ethanol and ammonia 200:8:1) Rf 0.4.
Workup
- stirringThe mixture was stirred for 0.25 h
- customthe phases were separated
- extractionThe aqueous phase was extracted with dichloromethane (100 ml)
- washthe combined organic extracts were washed with water (2×100 ml), saturated brine
- customdried
- customevaporated
Sources & evidence
- ORD record
- ord-42496f848be14efa9b08da8ec0996a26
- Source dataset
- uspto-grants-1992_05
- Patent number
- US05114945
Reaction notes
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