Potassium Phosphate, Tribasic → HCID 58107485, compound

HRID 873684Notes

Reaction equation

HRID 873684 reaction equation
Br[C:2]1[C:10]2[C:5](=[CH:6][C:7]([C:11]([C:13]3[CH:14]=[CH:15][C:16]([Cl:30])=[C:17]([S:19]([NH:22][Si](C(C)(C)C)(C)C)(=[O:21])=[O:20])[CH:18]=3)=[O:12])=[CH:8][CH:9]=2)[N:4]([Si](C(C)(C)C)(C)C)[CH:3]=1.[C:38]1(B(O)O)[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C(COC)OC.O>[Cl:30][C:16]1[CH:15]=[CH:14][C:13]([C:11]([C:7]2[CH:6]=[C:5]3[C:10]([C:2]([C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=4)=[CH:3][NH:4]3)=[CH:9][CH:8]=2)=[O:12])=[CH:18][C:17]=1[S:19]([NH2:22])(=[O:21])=[O:20]

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 66827Phenylboronic AcidHCID 66850206HCID 66850206, compound

Product 1

HCID 58107485HCID 58107485, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
130 °C

Procedure

To a mixture of 0.1 g of 5-[3-bromo-1-(tert-butyl-dimethyl-silyl)-1H-indole-6-carbonyl]-2-chloro-N-(tert-butyl-dimethyl-silyl)-benzenesulfonamide, 0.039 g of phenylboronic acid and 0.025 g of 1,1′-bis(diphenylphosphino)-ferrocenedichloropalladium(II)-dichloromethane complex in dimethoxyethane (3.6 mL) is added 0.099 g of tri-potassium phosphate in water (1.2 mL). The solution is heated to 130° C. for 5 minutes (microwave irradiation). The reaction mixture is extracted with ethyl acetate. The organic phase is washed with water, dried (magnesium sulfate) and concentrated to 0.094 g of crude product. Purification via flash chromatography on silica gel (98:2 methylene chloride/methanol) afforded 2-chloro-5-(3-phenyl-1H-indole-6-carbonyl)-benzenesulfonamide as a tan powder. MS (m/z): 409 (M−1); Rf 0.22 (95:5:0.5 methylene chloride/methanol/ammonium hydroxide).

Workup

  1. custom(microwave irradiation)
  2. extractionThe reaction mixture is extracted with ethyl acetate
  3. washThe organic phase is washed with water
  4. dry with materialdried (magnesium sulfate)
  5. concentrationconcentrated to 0.094 g of crude product
  6. customPurification via flash chromatography on silica gel (98:2 methylene chloride/methanol)

Sources & evidence

ORD record
ord-720cf8d629374fc4912e1597afcbfde2
Source dataset
uspto-grants-2015_03
Patent number
US08975439B2

Reaction notes

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