Cesium carbonate → Methyl 7-[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylate

HRID 1693672Notes

Reaction equation

HRID 1693672 reaction equation
Cl[CH2:2][C:3]1[C:4]([C:11]2[C:16]([Cl:17])=[CH:15][CH:14]=[CH:13][C:12]=2[Cl:18])=[N:5][O:6][C:7]=1[CH:8]([CH3:10])[CH3:9].[OH:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[CH:35]=[C:34]3[C:29]([CH:30]=[CH:31][C:32]([C:36]([O:38][CH3:39])=[O:37])=[CH:33]3)=[CH:28][CH:27]=2)=[CH:22][CH:21]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O>[Cl:18][C:12]1[CH:13]=[CH:14][CH:15]=[C:16]([Cl:17])[C:11]=1[C:4]1[C:3]([CH2:2][O:19][C:20]2[CH:21]=[CH:22][C:23]([C:26]3[CH:35]=[C:34]4[C:29]([CH:30]=[CH:31][C:32]([C:36]([O:38][CH3:39])=[O:37])=[CH:33]4)=[CH:28][CH:27]=3)=[CH:24][CH:25]=2)=[C:7]([CH:8]([CH3:10])[CH3:9])[O:6][N:5]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 592648754-(Chloromethyl)-3-(2,6-dichlorophenyl)-5-isopropylisoxazoleHCID 59264877Methyl 7-(4-hydroxyphenyl)-2-naphthalenecarboxylate

Product 1

HCID 59264871Methyl 7-[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylateYield 79.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 4-(chloromethyl)-3-(2,6-dichlorophenyl)-5-(1-methylethyl)isoxazole (0.12 g, 0.36 mmol), methyl 7-(4-hydroxyphenyl)-2-naphthalenecarboxylate (0.084 g, 0.30 mmol), and cesium carbonate (137 mg, 0.42 mmol) in dimethylformamide (0.73 mL) was heated to 65° C. for 3 hours. The solution was partitioned between ethyl acetate and water. The organic layer was dried with magnesium sulfate, filtered and concentrated. The filtrate was purified by chromatography (silica gel, hexane to 3:7 ethyl acetate:hexanes) to provide the title compound (0.130 g, 68.4% as 1.0 ethyl acetate). 1H NMR (DMSO-d6): 8.66 (s, 1H), 8.34 (s, 1H), 8.04-8.00 (m, 2H), 7.94-7.90 (m, 2H), 7.69 (d, J=9 Hz, 2H), 7.62 (d, J=8 Hz, 2H), 7.55-7.51 (m, 1H), 6.91 (d, J=9 Hz, 2H), 4.87 (s, 2H), 3.90 (s, 3H), 3.46 (septet, J=7 Hz, 1H), 1.33 (d, J=7 Hz, 6H). ESI-LCMS m/z 546 (M+H)+.

Workup

  1. customThe solution was partitioned between ethyl acetate and water
  2. dry with materialThe organic layer was dried with magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe filtrate was purified by chromatography (silica gel, hexane to 3:7 ethyl acetate:hexanes)

Sources & evidence

ORD record
ord-254e9caeb5f6434b8cb9847d33725ea7
Source dataset
uspto-grants-2012_04
Patent number
US08158665B2

Reaction notes

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