Water → 2-Oxopropyl [(5,6-Dichloro-9a-ethyl-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)oxy]acetate

HRID 2058593Notes

Reaction equation

HRID 2058593 reaction equation
C(=O)([O-])[O-].[K+].[K+].[Cl:7][C:8]1[C:20]([Cl:21])=[C:19]([O:22][CH2:23][C:24]([OH:26])=[O:25])[CH:18]=[C:17]2[C:9]=1[C:10]1[C:15]([CH2:27][CH3:28])([CH2:16]2)[CH2:14][CH2:13][C:12](=[O:29])[CH:11]=1.Cl[CH2:31][C:32](=[O:34])[CH3:33].O>CN(C)C=O.CCOCC>[Cl:7][C:8]1[C:20]([Cl:21])=[C:19]([O:22][CH2:23][C:24]([O:26][CH2:31][C:32](=[O:34])[CH3:33])=[O:25])[CH:18]=[C:17]2[C:9]=1[C:10]1[C:15]([CH2:27][CH3:28])([CH2:16]2)[CH2:14][CH2:13][C:12](=[O:29])[CH:11]=1

Participants

7

Reactant 4

HCID 962WaterHCID 6571ChloroacetoneHCID 11430Potassium CarbonateHCID 12806939[(5,6-Dichloro-9a-ethyl-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)oxy]acetic acid

Product 1

HCID 128069492-Oxopropyl [(5,6-Dichloro-9a-ethyl-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)oxy]acetate

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6228DimethylformamideSolvent

Procedure

Potassium carbonate (0.2 g) is suspended in a solution of [(5,6-dichloro-9a-ethyl-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)oxy]acetic acid (Example 20, Step D) (0.4 g, 0.0011 mole) in dimethylformamide (3 ml). After warming the suspension on a steam bath for 15 minutes, chloroacetone (0.5 g, 0.005 mole) is added and the mixture heated for an additional 15 minutes. The reaction mixture is cooled, poured into water (50 ml) and the product extracted into ether (three 15 ml portions. The extract is dried over Na2SO4. After filtration, the extract is concentrated to give a yellow oil. Trituration with cold ether causes crystallization to occur. The crystalline product weighs 0.1 g and melts at 153°-155° C.

Workup

  1. temperatureAfter warming the suspension on a steam bath for 15 minutes
  2. temperaturethe mixture heated for an additional 15 minutes
  3. temperatureThe reaction mixture is cooled
  4. extractionthe product extracted into ether (three 15 ml portions
  5. dry with materialThe extract is dried over Na2SO4
  6. filtrationAfter filtration
  7. concentrationthe extract is concentrated
  8. customto give a yellow oil
  9. customcrystallization

Sources & evidence

ORD record
ord-cd9cea1de8b54f7f9e91262b2e6444f4
Source dataset
uspto-grants-1982_03
Patent number
US04317922

Reaction notes

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