4-Methylmorpholine → HCID 54574756, compound

HRID 1682943Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([CH2:14][CH2:15][OH:16])[CH2:13][CH2:12][NH:11][CH2:10]2)[CH:5]=[CH:6][C:7]=1[Cl:8].CN1CCOCC1.[CH3:24][O:25][C:26]1[CH:34]=[CH:33][CH:32]=[C:31]([O:35][CH3:36])[C:27]=1[C:28](Cl)=[O:29]>ClCCl>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([CH2:14][CH2:15][OH:16])[CH2:13][CH2:12][N:11]([C:28](=[O:29])[C:27]3[C:31]([O:35][CH3:36])=[CH:32][CH:33]=[CH:34][C:26]=3[O:25][CH3:24])[CH2:10]2)[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

Conditions

Temperature: 0 °C

Procedure

3-(3,4-Dichloro-phenyl)-3-(2-hydroxy-ethyl)-pyrrolidine (2 g, 7.695 mmol) was dissolved in dichloromethane at -78° C. and treated with 4-methylmorpholine (1.8 mL, 16.4 mmol, 2.1 eq.) and 2,6-dimethoxy-benzoyl chloride (1.55 g, 7.73 mmol) in dichloromethane (20 mL). The solution was allowed to warm to 0° C. and stirred for 1.5 hours. The solution was washed with 1N HCl and 5% sodium bicarbonate and the organic phase was dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was chromatographed on silica gel (200 g) with a gradient of 50% ethyl acetate in hexane to 6% methanol in dichloromethane to give 2.434 g (75%) of the title compound.

Workup

washThe solution was washed with 1N HCl and 5% sodium bicarbonate
dry with materialthe organic phase was dried over magnesium sulfate
filtrationfiltered
concentrationconcentrated in vacuo
customThe residue was chromatographed on silica gel (200 g) with a gradient of 50% ethyl acetate in hexane to 6% methanol in dichloromethane

Sources & evidence

ORD record: ord-7810e23a4ab24d9897590089f47c6a96
Source dataset: uspto-grants-1997_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05635510

Reaction notes

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