Tris(1,1-dimethylethyl)phosphine → HCID 25006736, compound

HRID 2239490Notes

Reaction equation

HRID 2239490 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH:12]2[CH2:15][CH2:14][CH2:13]2)(=[O:10])=[O:9])=[C:4]([O:16][C:17]([F:20])([F:19])[F:18])[CH:3]=1.[C:21]([C:23]1[N:27]([CH3:28])[C:26](B(O)O)=[CH:25][CH:24]=1)#[N:22].[F-].[K+].C(P(C(C)(C)C)C(C)(C)C)(C)(C)C>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:21]([C:23]1[N:27]([CH3:28])[C:26]([C:2]2[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH:12]3[CH2:15][CH2:14][CH2:13]3)(=[O:10])=[O:9])=[C:4]([O:16][C:17]([F:20])([F:19])[F:18])[CH:3]=2)=[CH:25][CH:24]=1)#[N:22]

Participants

6

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 522689Potassium FluorideHCID 11708078(5-cyano-1-methyl-1H-pyrrol-2-yl)boronic acidHCID 68485410HCID 68485410, compound

Product 1

HCID 25006736HCID 25006736, compoundYield 24%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

According to general procedure B, 4-bromo-N-cyclobutyl-2-(trifluoromethoxy)benzenesulfonamide (224 mg, 0.59 mmol), 5-cyano-1-methyl-1H-pyrrol-2-ylboronic acid (107 mg, 0.71 mmol), potassium fluoride (113 mg, 1.95 mmol), and tris(dibenzylideneacetone)dipalladium (0) (15 mg, 0.01 mmol) were placed in an oven dried flask under nitrogen and dry THF (1.4 mL) was added. Tri-t-butylphosphine (89 μL, 0.02 mmol, 10 wt % in hexane) was added and the reaction was stirred for 16 hours. 4-(5-cyano-1-methyl-1H-pyrrol-2-yl)-N-cyclobutyl-2-(trifluoromethoxy)benzenesulfonamide (56 mg, 24%) was provided after purification. MS (ESI) m/z 399. HPLC purity 99.4% at 210-370 nm, 10.0 min.; the Xterra® RP18 column, 3.5μ, 150×4.6 mm column, 1.2 mL/min., 85/15-5/95 (ammonium formate buffer pH=3.5/ACN+MeOH) for 10 min., hold 4 min.

Workup

  1. customwere placed in an oven
  2. customdried flask under nitrogen
  3. additiondry THF (1.4 mL) was added

Sources & evidence

ORD record
ord-48c3c0653022415f9762e920e1c84084
Source dataset
uspto-grants-2010_05
Patent number
US07723332B2

Reaction notes

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