Potassium Phosphate, Tribasic → HCID 66981724, compound

HRID 1942596Notes

Reaction equation

HRID 1942596 reaction equation
Br[C:2]1[S:3][C:4]([C:7]2[CH:12]=[CH:11][C:10]([O:13][CH:14]([CH3:16])[CH3:15])=[C:9]([C:17]([F:20])([F:19])[F:18])[CH:8]=2)=[N:5][N:6]=1.[CH2:21]([C:23]1[C:28](/[CH:29]=[CH:30]/[O:31][CH3:32])=[CH:27][CH:26]=[CH:25][C:24]=1B1OC(C)(C)C(C)(C)O1)[CH3:22].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C)C=O.O.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>[CH2:21]([C:23]1[C:28](/[CH:29]=[CH:30]/[O:31][CH3:32])=[CH:27][CH:26]=[CH:25][C:24]=1[C:2]1[S:3][C:4]([C:7]2[CH:12]=[CH:11][C:10]([O:13][CH:14]([CH3:16])[CH3:15])=[C:9]([C:17]([F:20])([F:19])[F:18])[CH:8]=2)=[N:5][N:6]=1)[CH3:22]

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 669817762-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 669817782-Bromo-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole

Product 1

HCID 66981724HCID 66981724, compoundYield 64%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 6228DimethylformamideSolvent

Conditions

Temperature
120 °C

Procedure

To a suspension of 2-bromo-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole (D4) (55 mg), 2-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (64.8 mg) and tripotassium phosphate (79 mg) in N,N-dimethylformamide (DMF) (4 mL) and water (1 mL) under nitrogen was added Pd(Ph3P)4 (17.31 mg). The reaction vessel was sealed and heated under microwave at 120° C. for 10 min. After cooling the reaction, water was added. The reaction mixture was extracted with EA for 3 times, the combined organic layers were washed with brine, dried over anhydrous sodium sulfate, the dried solution was concentrated, the residue was purified by column chromatography to afford 2-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole (D18) (43 mg) as a yellow oil. MS (ES): C23H23F3N2O2S requires 448. found 449.1 (M+H+).

Workup

  1. customThe reaction vessel was sealed
  2. temperatureAfter cooling
  3. additionwas added
  4. extractionThe reaction mixture was extracted with EA for 3 times
  5. washthe combined organic layers were washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationthe dried solution was concentrated
  8. customthe residue was purified by column chromatography

Sources & evidence

ORD record
ord-d0785ec52c884ec1befc6c787d406328
Source dataset
uspto-grants-2013_03
Patent number
US08389508B2

Reaction notes

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