Potassium Carbonate → 4'-Ethynyl-2-(trifluoromethyl)biphenyl

HRID 710443

Reaktionsgleichung

Reaktionsgleichung von HRID 710443
[F:1][C:2]([F:18])([F:17])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[CH:14]=[CH:13][C:12]([CH:15]=O)=[CH:11][CH:10]=1.[C:19]([O-])([O-])=O.[K+].[K+].[N+](=C(P(=O)(OC)OC)C(=O)C)=[N-]>CO>[C:15]([C:12]1[CH:13]=[CH:14][C:9]([C:4]2[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=2[C:2]([F:18])([F:17])[F:1])=[CH:10][CH:11]=1)#[CH:19]

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 13926532'-TrifluoroMethyl-Biphenyl-4-CarbaldehydeHCID 136023029(1E)-1-diazo-1-dimethoxyphosphorylpropan-2-one

Produkt 1

HCID 866618064'-Ethynyl-2-(trifluoromethyl)biphenylAusbeute 85,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel2×

Versuchsvorschrift

To a stirred suspension of the product of Example 36, Step A, (0.21 g, 1 mmol) and K2CO3 (0.166 g, 1.1 mmol) in anhydrous MeOH (5 mL) was added a solution of dimethyl 1-diazo-2-oxopropylphosphonate (0.212 g, 1.1 mmol) in anhydrous MeOH (1 ml) and the mixture was stirred overnight at room temperature. The solvent was evaporated to dryness and the residue was diluted to 50 ml with EtOAc and washed with H2O. The organic layer was separated, dried over MgSO4, and filtered. The filtrate was passed through silica gel bead. The filtrate was evaporated to dryness to give the product (0.21 g, 85.4%), as creamy paste, which was used as such in next step. 1H-NMR (CDCl3) 3.11 (s, 1H); 7.25-7.31 (m, 3H); 7.44-7.55 (m, 4H); 7.73 (d, 1H, J=7.69 Hz).

Aufarbeitung

  1. customThe solvent was evaporated to dryness
  2. additionthe residue was diluted to 50 ml with EtOAc
  3. washwashed with H2O
  4. customThe organic layer was separated
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. customThe filtrate was evaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-bd7229f3ebbe4683b508cd737f42bc88
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09181182B2

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