4-Methylmorpholine → HCID 54015840, compound

HRID 1682936Notes

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]=[C:33]([O:35][CH3:36])[CH:32]=[CH:31][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[CH:31]=[CH:32][C:33]([O:35][CH3:36])=[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 (288 mg, 1.1 mmol) was dissolved in dichloromethane (3 mL) at -78° C. and treated with 4-methylmorpholine (0.25 mL, 2.27 mmol, 2.eq.) and 2,4-dimethoxy-benzoyl chloride (220 mg, 1.1 mmol, 1 eq.) dissolved in 3 mL of dichloromethane. The solution was allowed to warm to 0° C. and stirred for 1 hour. The solution was washed with 1N HCl, and 5% sodium bicarbonate. The organic phase was dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was chromatographed on silica gel (30 g) with a gradient of 50% ethyl acetate in hexane to 6% methanol in dichloromethane to give 324 mg (69%) 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 (30 g) with a gradient of 50% ethyl acetate in hexane to 6% methanol in dichloromethane

Sources & evidence

ORD record: ord-32e3dc1773c544888e7214177f49b5de
Source dataset: uspto-grants-1997_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05635510

Reaction notes

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