Sodium Hydroxide → 3-[3-(2-Phenylimidazol-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide

HRID 659689Notes

Reaction equation

HRID 659689 reaction equation
Br[C:2]1[N:3]([CH2:7][C:8]2[CH:9]=[C:10]([C:14]3[CH:18]=[C:17]([CH2:19][CH:20]([CH3:22])[CH3:21])[S:16][C:15]=3[S:23]([NH:26][C:27]([CH3:30])([CH3:29])[CH3:28])(=[O:25])=[O:24])[CH:11]=[CH:12][CH:13]=2)[CH:4]=[CH:5][N:6]=1.[C:31]1(B(O)O)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.[OH-].[Na+]>C1(C)C=CC=CC=1.C(O)C.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:31]1([C:2]2[N:3]([CH2:7][C:8]3[CH:9]=[C:10]([C:14]4[CH:18]=[C:17]([CH2:19][CH:20]([CH3:22])[CH3:21])[S:16][C:15]=4[S:23]([NH:26][C:27]([CH3:30])([CH3:29])[CH3:28])(=[O:25])=[O:24])[CH:11]=[CH:12][CH:13]=3)[CH:4]=[CH:5][N:6]=2)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1

Participants

8

Reactant 3

HCID 14798Sodium HydroxideHCID 66827Phenylboronic Acid2×HCID 671329713-[3-(2-bromoimidazol-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide

Product 1

HCID 671328543-[3-(2-Phenylimidazol-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamideYield 49%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalyst2×HCID 702EthanolSolventHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of 3-[3-(2-bromoimidazol-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide (58.5 mg, 0.115 mmol; see Example 11(b)) in toluene (5 mL) and ethanol (0.5 mL) was added phenyl boronic acid (55.9 mg, 0.458 mmol), Pd(PPh3)4 (7.9 mg, 6.88 μmol), NaOH (0.46 mL, 0.688 mmol, 1.5 M aq), and the reaction mixture was stirred for 4 h at 90° C. Another portion of phenyl boronic acid (20.0 mg, 0.164 mmol) and Pd(PPh3)4 (2.0 mg, 1.7 μmol) were added and the reaction was stirred overnight at 90° C. The reaction mixture was diluted with EtOAc (30 mL) and washed with water, dried (over anhydrous MgSO4), concentrated in vacuo, and the residue purified by flash chromatography using EtOAc:hexane (8:2) as eluent to give the sub-title compound in 49% yield (28.4 mg, 0.056 mmol).

Workup

  1. stirringthe reaction was stirred overnight at 90° C
  2. washwashed with water
  3. dry with materialdried (over anhydrous MgSO4)
  4. concentrationconcentrated in vacuo
  5. customthe residue purified by flash chromatography

Sources & evidence

ORD record
ord-d83fd8e2ff7042a5bde14bae39fd643b
Source dataset
uspto-grants-2011_12
Patent number
US08080571B2

Reaction notes

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