Sodium Hydroxide → [2-(4-Bromo-2-fluoro-benzylthiocarbamoyl)-5-fluoro-4-methyl-phenoxy]-acetic acid

HRID 457975Notes

Reaction equation

HRID 457975 reaction equation
C([O:3][C:4](=[O:27])[CH2:5][O:6][C:7]1[CH:12]=[C:11]([F:13])[C:10]([CH3:14])=[CH:9][C:8]=1[C:15](=[S:26])[NH:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([Br:24])=[CH:20][C:19]=1[F:25])C.[OH-].[Na+]>C(O)C>[Br:24][C:21]1[CH:22]=[CH:23][C:18]([CH2:17][NH:16][C:15]([C:8]2[CH:9]=[C:10]([CH3:14])[C:11]([F:13])=[CH:12][C:7]=2[O:6][CH2:5][C:4]([OH:27])=[O:3])=[S:26])=[C:19]([F:25])[CH:20]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 22093484[2-(4-Bromo-2-fluoro-benzylthiocarbamoyl)-5-fluoro-4-methyl-phenoxy]-acetic acid ethyl ester

Product 1

HCID 22093458[2-(4-Bromo-2-fluoro-benzylthiocarbamoyl)-5-fluoro-4-methyl-phenoxy]-acetic acidYield 98.7%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A stirring solution of [2-(4-bromo-2-fluoro-benzylthiocarbamoyl)-5-fluoro-4-methyl-phenoxy]-acetic acid ethyl ester (0.79 g, 1.53 mmol) in ethanol (7.6 mL, 0.2 M) and treated with aqueous NaOH (2 N, 7.4 mL, 9.15 mmol) in an analogous fashion to Example 45, Step 9 to provide [2-(4-bromo-2-fluoro-benzylthiocarbamoyl)-5-fluoro-4-methyl-phenoxy]-acetic acid (0.65 g, 98%) as a yellow solid: mp 162–164° C.; Rf 0.41 (20% methanol in methylene chloride); 1H NMR (DMSO-d6, 300 mHz) δ 10.64 (t, J=5.0 Hz, 1 H), 7.61 (d, J=9.0 Hz, 1 H), 7.52 (dd, J1=9.6 Hz, J2=1.7 Hz, 1 H), 7.45–7.36 (m, 2 H), 7.00 (d, J=11.4 Hz, 1 H), 4.89 (bd d, J=5.1 Hz, 2 H), 4.78 (s, 2 H), 2.15 (d, J=1.2 Hz, 3 H); ESI-LC/MS m/z calcd for C17H14BrF2NO3S: 428.98; found 428.0 (M−1)−; Anal. calcd for C17H14BrF2NO3S: C, 47.45; H, 3.28; N, 3.26; S, 7.45. Found C, 47.54; H, 3.19; N, 3.11; S, 7.33.

Sources & evidence

ORD record
ord-01c4f62ab8a14209bf1909f8156b784c
Source dataset
uspto-grants-2007_03
Patent number
US07189749B2

Reaction notes

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