2-Methyl-2-butene → HCID 58492412, compound

HRID 68157Notes

Reaction equation

HRID 68157 reaction equation
[F:1][C:2]1[CH:11]=[CH:10][C:9]([O:12][CH2:13][CH2:14][CH3:15])=[C:8]2[C:3]=1[C:4](=[O:28])[C:5]([C:20]1[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=1)=[CH:6][N:7]2[CH2:16][CH2:17][CH:18]=[O:19].Cl([O-])=[O:30].[Na+].CC(=CC)C.[Na].O.O.P(O)(O)(O)=O>O.ClCCl.C(O)(C)(C)C>[F:1][C:2]1[CH:11]=[CH:10][C:9]([O:12][CH2:13][CH2:14][CH3:15])=[C:8]2[C:3]=1[C:4](=[O:28])[C:5]([C:20]1[CH:21]=[CH:22][C:23]([O:26][CH3:27])=[CH:24][CH:25]=1)=[CH:6][N:7]2[CH2:16][CH2:17][C:18]([OH:30])=[O:19]

Participants

8

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 584924253-[5-Fluoro-3-(4-methoxyphenyl)-4-oxo-8-propoxy-4H-quinolin-1-yl]propionaldehydeHCID 86658926CID 86658926

Product 1

HCID 58492412HCID 58492412, compoundYield 68.1%

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 6344DichloromethaneSolventHCID 6386tert-ButanolSolvent

Procedure

3-[5-Fluoro-3-(4-methoxyphenyl)-4-oxo-8-propoxy-4H-quinolin-1-yl]propionaldehyde (1.0 g, 2.61 mmol) was dissolved in water (10 ml), tert-butyl alcohol (20 ml) and dichloromethane (20 ml). Sodium chlorite (3.2 g, 35.4 mmol), 2-methyl-2-butene (19.86 gm, 283 mmol) and sodium-dihydrogenphosphate dihydrate (2 g, 2.61 mmol) were added to the resulting solution, and the solution was stirred at room temperature for 1 hour. Water was added to the reaction mixture, the mixture was extracted with dichloromethane, and then washed with water and dried over anhydrous sodium sulfate. The dried product was concentrated under reduced pressure. The residue was purified using silica gel column chromatography (dichloromethane:ethyl acetate=50:50→0:100). The purified product was concentrated to dryness under reduced pressure, giving a pale yellow powder of 3-[5-fluoro-3-(4-methoxyphenyl)-4-oxo-8-propoxy-4H-quinolin-1-yl]propionic acid (710 mg, yield: 68%).

Workup

  1. extractionthe mixture was extracted with dichloromethane
  2. washwashed with water
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationThe dried product was concentrated under reduced pressure
  5. customThe residue was purified
  6. concentrationThe purified product was concentrated to dryness under reduced pressure

Sources & evidence

ORD record
ord-73a456459a9846598fc81aefedc819d8
Source dataset
uspto-grants-2014_09
Patent number
USRE045108E1

Reaction notes

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