Potassium Phosphate, Tribasic → HCID 66981904, compound

HRID 1942633Notes

Reaction equation

HRID 1942633 reaction equation
Br[C:2]1[N:6]=[C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])[S:4][N:3]=1.[CH2:19]([C:21]1[C:26](/[CH:27]=[CH:28]/[O:29][CH3:30])=[CH:25][CH:24]=[CH:23][C:22]=1B1OC(C)(C)C(C)(C)O1)[CH3:20].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O.C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:19]([C:21]1[C:26](/[CH:27]=[CH:28]/[O:29][CH3:30])=[CH:25][CH:24]=[CH:23][C:22]=1[C:2]1[N:6]=[C:5]([C:7]2[CH:8]=[CH:9][C:10]([CH2:15][CH:16]([CH3:18])[CH3:17])=[C:11]([CH:14]=2)[C:12]#[N:13])[S:4][N:3]=1)[CH3:20]

Participants

8

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 669817585-(3-Bromo-1,2,4-thiadiazol-5-yl)-2-(2-methylpropyl)benzonitrileHCID 669817762-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Product 1

HCID 66981904HCID 66981904, compoundYield 79.8%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 5-(3-bromo-1,2,4-thiadiazol-5-yl)-2-(2-methylpropyl)benzonitrile (D60) (500 mg), 2-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (470 mg) and tripotassium phosphate (988 mg) in N,N-dimethylformamide (DMF) (6 mL) and water (1.5 mL) stirred under nitrogen was added Pd(Ph3P)4 (179 mg). The mixture was sealed and heated under microwave at 120° C. for 15 min. After cooling the reaction, the mixture was diluted with ethyl acetate, washed with water, dried over sodium sulphate, concentrated and purified by column chromatography to give 5-(3-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-1,2,4-thiadiazol-5-yl)-2-(2-methylpropyl)benzonitrile (D61) (500 mg). MS (ES): C24H25N3OS requires 403. found 404.2 (M+H+).

Workup

  1. customThe mixture was sealed
  2. temperatureAfter cooling
  3. customthe reaction
  4. washwashed with water
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated
  7. custompurified by column chromatography

Sources & evidence

ORD record
ord-8908129541ca4b9d8f0dd42745021fd5
Source dataset
uspto-grants-2013_03
Patent number
US08389508B2

Reaction notes

Loading…