2-Fluoropyridine-4-boronic acid → 5-Fluoro-3-methyl-benzo[b]thiophene-2-sulfonic acid [4-(2-fluoro-pyridin-4-yl)-2-trifluoromethyl-phenyl]-amide

HRID 1693100Notes

Reaction equation

HRID 1693100 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([NH:8][S:9]([C:12]2[S:16][C:15]3[CH:17]=[CH:18][C:19]([F:21])=[CH:20][C:14]=3[C:13]=2[CH3:22])(=[O:11])=[O:10])=[C:4]([C:23]([F:26])([F:25])[F:24])[CH:3]=1.[F:27][C:28]1[CH:33]=[C:32](B(O)O)[CH:31]=[CH:30][N:29]=1>COCCOC.C(O)C.C(=O)([O-])[O-].[Na+].[Na+].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>[F:27][C:28]1[CH:33]=[C:32]([C:2]2[CH:7]=[CH:6][C:5]([NH:8][S:9]([C:12]3[S:16][C:15]4[CH:17]=[CH:18][C:19]([F:21])=[CH:20][C:14]=4[C:13]=3[CH3:22])(=[O:11])=[O:10])=[C:4]([C:23]([F:26])([F:25])[F:24])[CH:3]=2)[CH:31]=[CH:30][N:29]=1

Participants

7

Reactant 2

HCID 27833962-Fluoropyridine-4-boronic acidHCID 249652745-Fluoro-3-methyl-benzo[b]thiophene-2-sulfonic acid(4-bromo-2-trifluoromethyl-phenyl)-amide

Product 1

HCID 249656265-Fluoro-3-methyl-benzo[b]thiophene-2-sulfonic acid [4-(2-fluoro-pyridin-4-yl)-2-trifluoromethyl-phenyl]-amideYield 68.5%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 80711,2-DimethoxyethaneSolventHCID 10340Sodium CarbonateSolvent

Procedure

This compound was prepared in analogy to Example 2 starting from 5-fluoro-3-methyl-benzo[b]thiophene-2-sulfonic acid(4-bromo-2-trifluoromethyl-phenyl)-amide (0.12 g) and 2-fluoropyridine-4-boronic acid (0.072 g) in 1,2-dimethoxyethane (1.5 ml), ethanol (0.32 ml) and 2 M aqueous sodium carbonate solution (1.0 ml) with tetrakis(triphenylphosphine)palladium (0.065 g) to obtain the title compound (0.085 g) as a colorless foam. MS (ISN): 483.4 (M−H)−

Sources & evidence

ORD record
ord-1e545dd606a242a2b14b536151461ce8
Source dataset
uspto-grants-2012_04
Patent number
US08158655B2

Reaction notes

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