1,3-Benzodioxole → 1-Acetoxy-2-Methyl-3-(3,4-Methylenedioxyphenyl)Propene

HRID 1665859

Reaction equation

HRID 1665859 reaction equation
[CH3:1][CH:2]([CH2:5][C:6]1[CH:11]=[CH:10][C:9]2[O:12][CH2:13][O:14][C:8]=2[CH:7]=1)[CH:3]=[O:4].C1O[C:18]2C=CC=C[C:17]=2[O:16]1.CC(C(OC(=O)C)OC(=O)C)=C>>[C:17]([O:4][CH:3]=[C:2]([CH3:1])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]2[O:12][CH2:13][O:14][C:8]=2[CH:7]=1)(=[O:16])[CH3:18]

Participants

4

Reactant 3

HCID 92291,3-BenzodioxoleHCID 25305Methacrolein diacetateHCID 648053-(3,4-Methylenedioxyphenyl)-2-methylpropanal

Product 1

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

Procedure

The production process (A) comprises the steps of (1) reacting 1,2-methylenedioxybenzene and 2-methyl-3,3-diacetoxypropene with each other to produce 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene; and (2) subjecting the obtained 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene to hydrolysis reaction or to transesterification reaction with an alcohol, followed by subjecting the resulting reaction mixture to distillative purification, to thereby adjust a content of 1-acetyl-3,4-methylenedioxybenzene as a by-product in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal to from 50 to 3000 ppm.

Sources & evidence

ORD record
ord-7e15406085d7496381c1e1ce467761df
Source dataset
uspto-grants-2011_10
Patent number
US08039649B2

Linked notes

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