Potassium Carbonate → 4-[5-(1-Benzo[1,3]dioxol-5-ylcyclopropyl)carbonylamino-2-methyl-phenyl]benzoic acid

HRID 2242724Notes

Reaction equation

HRID 2242724 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:21]=[CH:20][C:19]([CH3:22])=[C:18](Br)[CH:17]=4)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.B([C:27]1[CH:35]=[CH:34][C:30]([C:31]([OH:33])=[O:32])=[CH:29][CH:28]=1)(O)O.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:21]=[CH:20][C:19]([CH3:22])=[C:18]([C:27]5[CH:35]=[CH:34][C:30]([C:31]([OH:33])=[O:32])=[CH:29][CH:28]=5)[CH:17]=4)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 3121834-Carboxyphenylboronic AcidHCID 592060871-(Benzo[d][1,3]dioxol-5-yl)-N-(3-bromo-4-methylphenyl)cyclopropanecarboxamide

Product 1

HCID 592060514-[5-(1-Benzo[1,3]dioxol-5-ylcyclopropyl)carbonylamino-2-methyl-phenyl]benzoic acidYield 98%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

1-(Benzo[d][1,3]dioxol-5-yl)-N-(3-bromo-4-methylphenyl)cyclopropanecarbox-amide (B-8) (5.1 g, 14 mmol), 4-boronobenzoic acid (3.4 g, 20 mmol), 1 M K2CO3 (54 mL, 54 mmol), Pd-FibreCat 1007 (810 mg, 1.35 mmol), and DMF (135 mL) were combined. The mixture was heated at 80° C. for 3 h. After cooling, the mixture was filtered and DMF was removed in vacuo. The residue was partitioned between dichloromethane (250 mL) and 1N HCl (250 mL). The organics were separated, washed with saturated NaCl solution (250 mL), and dried over Na2SO4. Evaporation of organics yielded 4-[5-(1-benzo[1,3]dioxol-5-ylcyclopropyl)carbonylamino-2-methyl-phenyl]benzoic acid (5.5 g, 98%). ESI-MS m/z calc. 415.1, found 416.5 (M+1)+; Retention time 3.19 minutes. 1H NMR (400 MHz, DMSO-d6) δ 13.06 (s, 1H), 8.83 (s, 1H), 8.06-8.04 (m, 2H), 7.58-7.56 (m, 1H), 7.50-7.48 (m, 3H), 7.27-7.24 (m, 1H), 7.05-7.04 (m, 1H), 6.98-6.94 (m, 2H), 6.07 (s, 2H), 2.22 (s, 3H), 1.46-1.44 (m, 2H), 1.12-1.09 (m, 2H).

Workup

  1. temperatureAfter cooling
  2. filtrationthe mixture was filtered
  3. customDMF was removed in vacuo
  4. customThe residue was partitioned between dichloromethane (250 mL) and 1N HCl (250 mL)
  5. customThe organics were separated
  6. washwashed with saturated NaCl solution (250 mL)
  7. dry with materialdried over Na2SO4
  8. customEvaporation

Sources & evidence

ORD record
ord-166cf9cd11f246bba77adb8b392874b4
Source dataset
uspto-grants-2010_03
Patent number
US07671221B2

Reaction notes

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