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

HRID 223824Notes

Reaction equation

HRID 223824 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-8f447d692b67467f830060e4703da3e5
Source dataset
uspto-grants-1982_10
Patent number
US04356314

Reaction notes

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