2,6-Dimethylbenzaldehyde → HCID 66653558, Verbindung

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Reaktionsgleichung

[CH2:1]([N:8]1[CH2:13][CH2:12][O:11][CH:10]([C:14]2[CH:19]=[CH:18][C:17](Br)=[CH:16][CH:15]=2)[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([Li])(C)(C)C.[CH3:26][C:27]1[CH:34]=[CH:33][CH:32]=[C:31]([CH3:35])[C:28]=1[CH:29]=[O:30]>C1COCC1>[CH2:1]([N:8]1[CH2:13][CH2:12][O:11][CH:10]([C:14]2[CH:19]=[CH:18][C:17]([CH:29]([C:28]3[C:31]([CH3:35])=[CH:32][CH:33]=[CH:34][C:27]=3[CH3:26])[OH:30])=[CH:16][CH:15]=2)[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

Reaktionsbedingungen

Temperatur: -78 °C

Versuchsvorschrift

To a solution of 4-benzyl-2-(4-bromo-phenyl)-morpholine (2.1 g, 6.3 mmol) in THF (30 mL), at −78° C., was added dropwise t-butyl lithium (7.9 mL; 1.6 mol/l in heptanes; 12.6 mmol). The mixture was stirred for 20 min. at −78° C., and subsequently 2,6-dimethylbenzaldehyde (1 g, 7.6 mmol) was added. The mixture was allowed to warm to RT and stirred overnight. The resulting mixture was partitioned between water and EtOAc. The layers were separated. The organic layer was washed with water, dried (Na2SO4), filtered and concentrated in vacuo. The residue was purified by column chromatography (EtOAc:heptanes 1:1) to afford [4-(4-benzyl-morpholin-2-yl)-phenyl]-(2,6-dimethyl-phenyl)-methanol (1.6 g), which was used as such in the next step.

Aufarbeitung

temperatureto warm to RT
stirringstirred overnight
customThe resulting mixture was partitioned between water and EtOAc
customThe layers were separated
washThe organic layer was washed with water
dry with materialdried (Na2SO4)
filtrationfiltered
concentrationconcentrated in vacuo
customThe residue was purified by column chromatography (EtOAc:heptanes 1:1)

Quellen und Nachweise

ORD-Eintrag: ord-a44f2e1d927f460eac1bef8304ed91ea
Quelldatensatz: uspto-grants-2016_01
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09227960B2

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