Tris(1,1-dimethylethyl)phosphine → HCID 25005621, compound

HRID 2239455Notes

Reaction equation

HRID 2239455 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][CH:12]2[CH2:14][CH2:13]2)(=[O:10])=[O:9])=[CH:4][C:3]=1[F:15].[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][CH:12]3[CH2:14][CH2:13]3)(=[O:10])=[O:9])=[CH:4][C:3]=2[F:15])=[CH:20][CH:19]=1)#[N:17]

Participants

6

Reactant 4

HCID 83681Tris(1,1-dimethylethyl)phosphineHCID 522689Potassium FluorideHCID 11708078(5-cyano-1-methyl-1H-pyrrol-2-yl)boronic acidHCID 684813974-Bromo-N-cyclopropyl-3-fluorobenzenesulfonamide

Product 1

HCID 25005621HCID 25005621, compoundYield 14%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

According to general procedure B, 4-bromo-N-cyclopropyl-3-fluorobenzenesulfonamide (175 mg, 0.59 mmol), 5-cyano-1-methyl-1H-pyrrol-2-ylboronic acid (106 mg, 0.70 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-cyclopropyl-3-fluorobenzenesulfonamide (26 mg, 14%) was provided after purification. MS (ESI) m/z 319. HPLC purity 100.0% at 210-370 nm, 8.9 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-6eaf70bed2ad4fdfa524a6917e2a8c25
Source dataset
uspto-grants-2010_05
Patent number
US07723332B2

Reaction notes

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