Tris(1,1-dimethylethyl)phosphine → HCID 25004588, compound

HRID 2239414Notes

Reaction equation

HRID 2239414 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH2:12][CH:13]2[CH2:15][CH2:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[C:16]([C:18]1[N:22]([CH3:23])[C:21](B(O)O)=[CH:20][CH:19]=1)#[N:17].[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:16]([C:18]1[N:22]([CH3:23])[C:21]([C:2]2[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH2:12][CH:13]3[CH2:15][CH2:14]3)(=[O:10])=[O:9])=[CH:4][CH:3]=2)=[CH:20][CH:19]=1)#[N:17]

Participants

6

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 522689Potassium FluorideHCID 3845777HCID 3845777, compoundHCID 11708078(5-cyano-1-methyl-1H-pyrrol-2-yl)boronic acid

Product 1

HCID 25004588HCID 25004588, compoundYield 5%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

According to general procedure B, 4-bromo-N-(cyclopropylmethyl)benzenesulfonamide (116 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-(cyclopropylmethyl)benzenesulfonamide (6 mg, 5%) was provided after purification. MS (ESI) m/z 315. HPLC purity 100.0% at 210-370 mn, 10.3 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-67812fbe48d4470b83ee99fbbd700a2e
Source dataset
uspto-grants-2010_05
Patent number
US07723332B2

Reaction notes

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