Water → 5-(5-(8-(Trifluoromethyl)quinolin-4-yloxy)pentyloxy)-2-(hydroxymethyl)-4H-pyran-4-one
Reaction equation
[F:1][C:2]([F:15])([F:14])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[CH:10][CH:9]=[C:8]2[OH:13].C([O-])([O-])=O.[Cs+].[Cs+].Br[CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][O:28][C:29]1[C:30](=[O:37])[CH:31]=[C:32]([CH2:35][OH:36])[O:33][CH:34]=1.O>CN(C=O)C>[F:15][C:2]([F:1])([F:14])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[CH:10][CH:9]=[C:8]2[O:13][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][O:28][C:29]1[C:30](=[O:37])[CH:31]=[C:32]([CH2:35][OH:36])[O:33][CH:34]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
8-Trifluoromethyl-quinolin-4-ol (0.84 g, 2.88 mmol) was dissolved in DMF (5 mL). Cs2CO3 (0.98 g, 3.02 mmol) was added at room temperature and the mixture was stirred for 10 min. A solution of 5-(5-bromo-pentyloxy)-2-hydroxymethyl-pyran-4-one 10 (0.86 g, 3.02 mmol) in DMF (5 mL) was added via syringe. This mixture was stirred at 50° C. for 18 h. Water (10 mL) was added and the mixture extracted with EtOAc (2×50 mL), washed with water (3×50 mL), brine (3×50 mL) dried over MgSO4, filtered and evaporated. The crude product was purified by column chromatography on silica using as eluent (CH2Cl2:MeOH)=90:10. 5-(5-(8-(Trifluoromethyl)quinolin-4-yloxy)pentyloxy)-2-(hydroxymethyl)-4H-pyran-4-one 14 was obtained (0.53 g, 35% yield) as a pale yellow foam.
Workup
- stirringThis mixture was stirred at 50° C. for 18 h
- extractionthe mixture extracted with EtOAc (2×50 mL)
- washwashed with water (3×50 mL), brine (3×50 mL)
- dry with materialdried over MgSO4
- filtrationfiltered
- customevaporated
- customThe crude product was purified by column chromatography on silica using as eluent (CH2Cl2:MeOH)=90:10
Sources & evidence
- ORD record
- ord-6cea9374f72a4b49bd682f334765b72f
- Source dataset
- uspto-grants-2009_04
- Patent number
- US07514432B2
Reaction notes
Loading…