Propargyl alcohol → HCID 86651054, compound

HRID 884885Notes

Reaction equation

HRID 884885 reaction equation
F[C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[C:8]1[O:9][C:10]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][C:11]=2[N:12]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:27]([OH:30])[C:28]#[CH:29]>O>[CH2:27]([O:30][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[C:8]1[O:9][C:10]2[CH:16]=[CH:15][C:14]([C:17]([F:20])([F:19])[F:18])=[CH:13][C:11]=2[N:12]=1)[C:28]#[CH:29]

Participants

5

Reactant 3

HCID 7859Propargyl alcoholHCID 11430Potassium CarbonateHCID 668801802-(3-Fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole

Product 1

HCID 86651054HCID 86651054, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 0.28 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.27 g of potassium carbonate and 3 ml of 2-propyne-1-ol was stirred while heating at 100° C. for two hours. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.20 g of 2-(3-(2-propyne-1-yloxy)pyridin-4-yl)-5-(trifluoromethyl)benzoxazole (hereinafter, referred to as “active compound 73”).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionfollowed by extraction with ethyl acetate twice
  3. washThe combined organic layers were washed with a saturated sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-5142d2f04aad4cdbab7702629629cae2
Source dataset
uspto-grants-2012_08
Patent number
US08242133B2

Reaction notes

Loading…