Tris(1,1-dimethylethyl)phosphine → HCID 25004248, compound

HRID 2239390Notes

Reaction equation

HRID 2239390 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH:12]([CH3:14])[CH3:13])(=[O:10])=[O:9])=[CH:4][CH:3]=1.[C:15]([C:17]1[N:21]([CH3:22])[C:20](B(O)O)=[CH:19][CH:18]=1)#[N:16].[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:15]([C:17]1[N:21]([CH3:22])[C:20]([C:2]2[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH:12]([CH3:14])[CH3:13])(=[O:10])=[O:9])=[CH:4][CH:3]=2)=[CH:19][CH:18]=1)#[N:16]

Participants

6

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 121253Benzenesulfonamide, p-bromo-N-isopropyl-HCID 522689Potassium FluorideHCID 11708078(5-cyano-1-methyl-1H-pyrrol-2-yl)boronic acid

Product 1

HCID 25004248HCID 25004248, compoundYield 12.4%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

According to general procedure B, 4-bromo-N-isopropylbenzenesulfonamide (111 mg, 0.40 mmol), 5-cyano-1-methyl-1H-pyrrol-2-ylboronic acid (72 mg, 0.48 mmol), potassium fluoride (76 mg, 1.3 mmol), and tris(dibenzylideneacetone)dipalladium(0) (10 mg, 0.01 mmol) were placed in an oven dried flask under nitrogen and dry THF (1.0 mL) was added. Tri-t-butylphosphine (60 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-isopropylbenzenesulfonamide (15 mg, 12%) was provided after purification. MS (ESI) m/z 303. HPLC purity 100.0% at 210-370 nm, 10.1 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 (1.0 mL) was added

Sources & evidence

ORD record
ord-bb914bce0a98410da8463ea70d1077b7
Source dataset
uspto-grants-2010_05
Patent number
US07723332B2

Reaction notes

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