Acetone → HCID 86747883, compound
Reaction equation
[CH3:1][O:2][N:3]=[C:4]([C:7]1[CH2:8][NH:9][CH2:10][CH2:11][CH:12]=1)[C:5]#[N:6].[C:13](=[O:16])([O-:15])[O-].[K+].[K+].I[CH2:20][CH3:21].CC(C)=[O:24]>>[C:1]([OH:2])(=[O:24])[C:13]([OH:15])=[O:16].[CH3:1][O:2][N:3]=[C:4]([C:7]1[CH2:8][N:9]([CH2:20][CH3:21])[CH2:10][CH2:11][CH:12]=1)[C:5]#[N:6]Participants
Procedure
To a vigorously stirred mixture of α-(methoxyimino)-α-(1,2,5,6-tetrahydropyridin-3-yl)acetonitrile (E10) (1.1 g, 0.0067 mol) and potassium carbonate (2.0 g, 0.0145 mol) in acetone (50 ml) at room temperature was added iodoethane (1.17 g, 0.0075 mol). After 4 hrs the mixture was concentrated in vacuo and the residue partitioned between water (25 ml) and chloroform (3×50 ml) The combined organic extracts were dried (Na2SO4) and evaporated to a residue which was purified by column chromatography on silica gel eluting with 0-2% methanol/chloroform to give the free base of the title compound (E11) (1.22 g, 94%). A portion of this was treated with anhydrous oxalic acid to give a solid which crystalised from ethanol/diethyl ether to afford the title compound (E11) as a white solid m.p. 155°-6° C.
Workup
- concentrationAfter 4 hrs the mixture was concentrated in vacuo
- customthe residue partitioned between water (25 ml) and chloroform (3×50 ml) The combined organic extracts
- dry with materialwere dried (Na2SO4)
- customevaporated to a residue which
- customwas purified by column chromatography on silica gel eluting with 0-2% methanol/chloroform
Sources & evidence
- ORD record
- ord-66ce3663aed746d797f11d1d73618690
- Source dataset
- uspto-grants-1994_05
- Patent number
- US05314901
Reaction notes
Loading…