3-(3,4-Methylenedioxyphenyl)-2-methylpropanal → Acetopiperone

HRID 1665861

Reaktionsgleichung

Reaktionsgleichung von HRID 1665861
C(OC=[C:6](C)[CH2:7][C:8]1[CH:13]=[CH:12][C:11]2[O:14][CH2:15][O:16][C:10]=2[CH:9]=1)(=O)C.CC(CC1C=CC2OCOC=2C=1)C=[O:21]>>[C:7]([C:8]1[CH:13]=[CH:12][C:11]2[O:14][CH2:15][O:16][C:10]=2[CH:9]=1)(=[O:21])[CH3:6]

Komponenten

3

Edukt 2

HCID 648053-(3,4-Methylenedioxyphenyl)-2-methylpropanalHCID 674398261-Acetoxy-2-Methyl-3-(3,4-Methylenedioxyphenyl)Propene

Produkt 1

HCID 76622Acetopiperone

Versuchsvorschrift

In the step (2), 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene represented by the following formula (3) which has been obtained in the step (1) is subjected to hydrolysis reaction or to transesterification reaction with an alcohol to obtain a crude product of 1-acetyl-3,4-methylenedioxybenzene represented by the following formula (4) and 2-methyl-3-(3,4-methylenedioxyphenyl)propanal represented by the following formula (5), and then the resulting reaction mixture is further subjected to distillative purification, to thereby obtain 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content of 1-acetyl-3,4-methylenedioxybenzene of from 50 to 3000 ppm.

Aufarbeitung

  1. customhas been obtained in the step (1)
  2. customis subjected to hydrolysis reaction

Quellen und Nachweise

ORD-Eintrag
ord-d8db934a1b8c4746bdb26fe23139c967
Quelldatensatz
uspto-grants-2011_10
Patentnummer
US08039649B2

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