Methanol → 7-[4-({[3-(2,6-Dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylic acid

HRID 646030Notes

Reaction equation

HRID 646030 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([Cl:8])[C:3]=1[C:9]1[C:13]([CH2:14][O:15][C:16]2[CH:21]=[CH:20][C:19]([C:22]3[CH:31]=[C:30]4[C:25]([CH:26]=[CH:27][C:28]([C:32]([O:34]C)=[O:33])=[CH:29]4)=[CH:24][CH:23]=3)=[CH:18][CH:17]=2)=[C:12]([CH:36]([CH3:38])[CH3:37])[O:11][N:10]=1.CO.[OH-].[Na+]>O1CCCC1>[Cl:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[C:3]=1[C:9]1[C:13]([CH2:14][O:15][C:16]2[CH:17]=[CH:18][C:19]([C:22]3[CH:31]=[C:30]4[C:25]([CH:26]=[CH:27][C:28]([C:32]([OH:34])=[O:33])=[CH:29]4)=[CH:24][CH:23]=3)=[CH:20][CH:21]=2)=[C:12]([CH:36]([CH3:38])[CH3:37])[O:11][N:10]=1

Participants

5

Reactant 3

HCID 887MethanolHCID 14798Sodium HydroxideHCID 59264871Methyl 7-[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylate

Product 1

HCID 247391717-[4-({[3-(2,6-Dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylic acidYield 77%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
100 °C

Procedure

A solution of methyl 7-[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}oxy)phenyl]-2-naphthalenecarboxylate (0.126 g, 0.2 mmol) in tetrahydrofuran (2.0 mL) was placed in a microwave reaction tube. Methanol (1.0 mL) was added followed by 1 N sodium hydroxide (0.3 mL, 0.3 mmol). The tube was sealed and heated in a microwave reactor to 100° C. for 600 seconds. The solution was neutralized and concentrated. Water was added and the mixture was filtered. The resulting solid was dried in a vacuum oven at 45° C. with P2O5 to yield the title compound (0.082 g, 73.9% as 0.30 tetrahydrofuran) 1H NMR (DMSO-d6): δ 13.3-12.6 (broad s, approximately 1H), 8.61 (s, 1H), 8.29 (s, 1H), 8.02-7.87 (m, 4H), 7.68 (d, J=9 Hz, 2H), 7.62 (d, J=8 Hz, 2H), 7.54 (dd, J=7, 9 Hz, 1H), 6.91 (d, J=9 Hz, 2H), 4.86 (s, 2H), 3.44 (septet, J=7 Hz, overlapping H2O, 1H), 1.33 (d, J=7 Hz, 6H). HRMS C30H23NO4Cl2 m/z 532.1082, (M+H)+cal; 532.1087 (M+H)+Obs.

Workup

  1. customThe tube was sealed
  2. concentrationconcentrated
  3. additionWater was added
  4. filtrationthe mixture was filtered
  5. dry with materialThe resulting solid was dried in a vacuum oven at 45° C. with P2O5

Sources & evidence

ORD record
ord-bbc634adab994872a31c82c0d7e18d97
Source dataset
uspto-grants-2010_04
Patent number
US07705028B2

Reaction notes

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