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

HRID 2047995Notes

Reaction equation

HRID 2047995 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-ac065cb7d47741638b233a953f184d8c
Source dataset
uspto-grants-2013_11
Patent number
US08592593B2

Reaction notes

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