Acetone → HCID 53905083, compound

HRID 1155318Notes

Reaction equation

HRID 1155318 reaction equation
[CH3:1][C:2](=[CH:5][CH2:6][CH3:7])[CH:3]=O.[CH3:8][C:9]([CH3:11])=[O:10]>O.O.C([O-])(=O)C.[Zn+2].C([O-])(=O)C>[CH3:1][C:2](=[CH:5][CH2:6][CH3:7])[CH:3]=[CH:8][C:9](=[O:10])[CH3:11]

Participants

4

Reactant 2

HCID 180AcetoneHCID 121772-Methyl-2-pentenal

Product 1

HCID 53905083HCID 53905083, compoundYield 29.1%

Reagents, catalysts & solvents 1

HCID 2724192Zinc acetate (USP)Catalyst

Procedure

Into a 2 liter autoclave are charged 2-methyl-2-pentenal (196 grams), acetone (580 grams) and zinc acetate dihydrate. The reaction mixture is heated at 170°-180° C. for a period of 5 hours. After filtering the catalyst the organic layer is washed with 10% salt solution. Distillation and bulking fractions 4-8 gives 80.3 grams of product, B.P. 91°-98° C. at 5-7 mm Hg. pressure. The bulked fractions or separate fractions are useful for augmenting or enhancing the aroma or taste of the foodstuff.

Workup

  1. temperatureThe reaction mixture is heated at 170°-180° C. for a period of 5 hours
  2. filtrationAfter filtering the catalyst the organic layer
  3. washis washed with 10% salt solution
  4. distillationDistillation and bulking fractions 4-8

Sources & evidence

ORD record
ord-df1d216e90e74dcc8a67b96721673c38
Source dataset
uspto-grants-1981_11
Patent number
US04301184

Reaction notes

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