Dimethylformamide → HCID 25029632, compound

HRID 1436405Notes

Reaction equation

HRID 1436405 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:9]=[C:10]([N:13]3[C@H:17]([CH2:18][F:19])[CH2:16][O:15][C:14]3=[O:20])[S:11][CH:12]=2)=[CH:4][CH:3]=1.[CH3:21][N:22](C)C=O>C(OCC)(=O)C.[C-]#N.[Zn+2].[C-]#N.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>[F:19][CH2:18][C@@H:17]1[CH2:16][O:15][C:14](=[O:20])[N:13]1[C:10]1[S:11][CH:12]=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([C:21]#[N:22])=[CH:3][CH:4]=2)[N:9]=1

Participants

6

Reactant 2

HCID 6228DimethylformamideHCID 25029412HCID 25029412, compound

Product 1

HCID 25029632HCID 25029632, compoundYield 81%

Reagents, catalysts & solvents 3

HCID 11186Zinc cyanide (Zn(CN)2)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

(4S)-3-[4-(4-Bromophenyl)-1,3-thiazol-2-yl]-4-(fluoromethyl)-1,3-oxazolidin-2-one (0.21 g, 0.59 mmol), prepared in Example 73, and zinc cyanide (41 mg, 0.35 mmol) were dissolved in 8 mL of dimethylformamide. The mixture was purged with nitrogen for 15 min, tetrakis(triphenylphosphine)palladium(0) (34 mg, 0.029 mmol) was added and the mixture was heated to 120° C. for 2 h. The mixture was cooled and diluted with ethyl acetate, and washed with water, brine, dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. Flash chromatography (100% CH2Cl2) afforded the title compound (146 mg, 81%) as a white solid. mp 195-196° C. HRMS: calcd for C14H10FN3O2S+H+, 304.05505; found (ESI, [M+H]+), 304.0555. Analytical HPLC: retention time 8.8 min, 210-370 nm the Xterra® RP18 column, 3.5%, 150×4.6 mm 40° C. 85/15-5/95 (Ammon. Form. Buff. pH=3.5/ACN+MeOH) for 10 min, hold 4 min, 1.2 mL/min 5 μL injection.

Workup

  1. customThe mixture was purged with nitrogen for 15 min
  2. temperatureThe mixture was cooled
  3. washwashed with water, brine
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-1e69299e3ac44a03968152f42162c767
Source dataset
uspto-grants-2009_11
Patent number
US07618990B2

Reaction notes

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