Ethanol → HCID 19015379, compound

HRID 1728893Notes

Reaction equation

HRID 1728893 reaction equation
C[O:2][C:3](=[O:25])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])=[C:6]([C:21]([CH3:24])([CH3:23])[CH3:22])[CH:5]=1.[OH-].[K+].CO.C(O)C>O>[CH2:11]([O:10][C:7]1[CH:8]=[CH:9][C:4]([C:3]([OH:25])=[O:2])=[CH:5][C:6]=1[C:21]([CH3:22])([CH3:24])[CH3:23])[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20]

Participants

6

Procedure

A mixture of 15.0 g of product from Example 130. 7.24 g of potassium hydroxide, 100 ml methyl alcohol, 40 ml ethyl alcohol and 10 ml of water is heated at reflux temperature for 18 hours. The reaction is cooled to room temperature, made acidic to pH 2, concentrated in vacuo, swirled with water and the solid collected. The solid residue is washed with water and dried in a vacuum oven to give 13 g of the desired product as colorless needles.

Workup

  1. temperatureat reflux temperature for 18 hours
  2. concentrationconcentrated in vacuo
  3. customthe solid collected
  4. washThe solid residue is washed with water
  5. customdried in a vacuum oven

Sources & evidence

ORD record
ord-e358a79a6a6e4b898052d0582a65b449
Source dataset
uspto-grants-1994_07
Patent number
US05328921

Reaction notes

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