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Dimethylformamide → 1-[4-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)1-piperidinyl]ethoxy]-3-methoxyphenyl]ethanone

HRID 357334
Notes
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Reaction equation

HRID 357334 reaction equation
Cl.[F:2][C:3]1[CH:17]=[CH:16][C:6]2[C:7]([CH:10]3[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]3)=[N:8][O:9][C:5]=2[CH:4]=1.C([O-])([O-])=O.[K+].[K+].Cl[CH2:25][CH2:26][O:27][C:28]1[CH:33]=[CH:32][C:31]([C:34](=[O:36])[CH3:35])=[CH:30][C:29]=1[O:37][CH3:38].CN(C)C=O>O>[F:2][C:3]1[CH:17]=[CH:16][C:6]2[C:7]([CH:10]3[CH2:11][CH2:12][N:13]([CH2:25][CH2:26][O:27][C:28]4[CH:33]=[CH:32][C:31]([C:34](=[O:36])[CH3:35])=[CH:30][C:29]=4[O:37][CH3:38])[CH2:14][CH2:15]3)=[N:8][O:9][C:5]=2[CH:4]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 11334359R-56109 hydrochlorideHCID 144071701-[4-(2-Chloroethoxy)-3-methoxyphenyl]ethanone

Product 1

HCID 104318121-[4-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)1-piperidinyl]ethoxy]-3-methoxyphenyl]ethanoneYield 89.7%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
90 °C

Procedure

A stirred mixture of 6-fluoro-3(4-piperidinyl)-1,2 benzisoxazole hydrochloride (5.1 g, 20 mmol), K2CO3 (5.2 g), 1-[4-(2-chloroethoxy)-3-methoxyphenyl]ethanone (5.0 g, 1022 mmol), and dimethylformamide (90 ml) was heated at 90° C. for 16 hours. The reaction was poured into water, and the aqueous mixture was extracted with ethyl acetate. The ethyl acetate was washed (water), dried (MgSO4), and concentrated to afford 7.4 g of a yellow solid. The solid was chromatographed on a Waters Prep LC 500 utilizing dichloromethane/methanol (4%) as eluent, and subsequent concentration of the appropriate fraction afforded 4.0 g of a yellow solid. The solid was recrystallized from ethyl alcohol to yield 3.1 g (38%) of 1-14-[2-14-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethoxy]-3-methoxyphenyl]ethanone, as slightly yellow flakes, m.p.=132°-134° C.

Workup

  1. extractionthe aqueous mixture was extracted with ethyl acetate
  2. washThe ethyl acetate was washed (water)
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-7e5d44423e0a4557a04708387a1ebf33
Source dataset
uspto-grants-1998_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05840727

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes