Acetone → 2,6-Diacetoxynaphthalene

HRID 982561

Reaktionsgleichung

Reaktionsgleichung von HRID 982561
[OH:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([OH:12])[CH:8]=2)[CH:3]=1.[C:13](OC(=O)C)(=[O:15])[CH3:14].[CH3:20][C:21](C)=[O:22]>>[C:13]([O:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([O:12][C:21](=[O:22])[CH3:20])[CH:8]=2)[CH:3]=1)(=[O:15])[CH3:14]

Komponenten

4

Edukt 3

HCID 180AcetoneHCID 7918Acetic AnhydrideHCID 935522,6-Dihydroxynaphthalene2×

Produkt 1

HCID 5949302,6-Diacetoxynaphthalene

Versuchsvorschrift

In a process for producing 2,6-dihydroxynaphthalene from 2,6-diisopropylnaphthalene, 2,6-diisopropylnaphthalene is oxidized in the presence of a specific proportion of a basic compound to hydroxylate or hydroperoxylate 2,6-diisopropylnaphthalene in a high conversion, and the resulting intermediate is then subjected to acid cleavage in the presence of hydrogen peroxide to produce 2,6-dihydroxynaphthalene in a high yield. The yield of 2,6-dihydroxynaphthalene increases by subjecting the reaction mixture containing the above intermediate to a purifying operation or dehydrating operation or adding acetone to it before it is submitted to the acid cleavage. 2,6-Dihydroxynaphthalene may be reacted with acetic anhydride to obtain 2,6-diacetoxynaphthalene.

Aufarbeitung

  1. additioncontaining the above intermediate to a purifying operation

Quellen und Nachweise

ORD-Eintrag
ord-e4024bb199fa4edfba8e4eb35e50c4f4
Quelldatensatz
uspto-grants-1991_02
Patentnummer
US04996372

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