Acetaldehyde → HCID 546223, compound

HRID 1579852Notes

Reaction equation

HRID 1579852 reaction equation
[CH:1](=[O:3])[CH3:2].[C:4]([O:8][C:9](=[O:12])[CH2:10]C)(=[O:7])[CH2:5][CH3:6].[C:13](=O)(O)[O-].[Na+]>>[C:1]([O:12][CH:9]([O:8][C:4](=[O:7])[CH2:5][CH3:6])[CH3:10])(=[O:3])[CH2:2][CH3:13]

Participants

4

Reactant 3

HCID 177AcetaldehydeHCID 31263Propionic anhydrideHCID 516892Sodium Bicarbonate

Product 1

HCID 546223HCID 546223, compound

Conditions

Temperature
25 °C

Procedure

An 88-g (2 mols) sample of acetaldehyde was added in small portions to a solution of 260 g (2 mols) of propionic anhydride at 60°C. The reaction mixture was then stirred at about 25°C for 7 hours. The reaction mixture was diluted with saturated sodium bicarbonate solution and extracted with methylene dichloride. The methylene dichloride extracts were dried over magnesium sulfate and evaporated under reduced pressure. The resulting residue was distilled through a 16-inch column to give 316.5 g of ethylidene bispropionate, b.p. 57°C. (1 mm/Hg).

Workup

  1. extractionextracted with methylene dichloride
  2. dry with materialThe methylene dichloride extracts were dried over magnesium sulfate
  3. customevaporated under reduced pressure
  4. distillationThe resulting residue was distilled through a 16-inch column

Sources & evidence

ORD record
ord-70e5fc2327f14b1a9813b0f9d86f39d0
Source dataset
uspto-grants-1976_01
Patent number
US03931412

Reaction notes

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