Trimethylolethane → 1,1,1-Trimethylolethane Tris(3,4-dimethoxybenzoate)
Reaktionsgleichung
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6](Cl)=[O:7].[CH2:14]([C:16]([CH2:20][OH:21])([CH2:18][OH:19])[CH3:17])[OH:15]>>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6]([OH:15])=[O:7].[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6]([OH:15])=[O:7].[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[C:6]([OH:15])=[O:7].[CH2:14]([C:16]([CH2:20][OH:21])([CH2:18][OH:19])[CH3:17])[OH:15]Komponenten
3
Versuchsvorschrift
Following the procedure of Example I, 3,4-dimethoxybenzoyl chloride was allowed to react with 1,1,1-trimethylolethane in the molar ratio of 3:1. The product was obtained in 90% yield as a glassy substance which slowly crystallized after being precipitated from methanol at dry-ice temperature. The triester is a white crystalline material, mp 105°-106° C., with an ester carbonyl band at 5.85μ. The proton magnetic resonance spectrum was consistent with the title compound.
Aufarbeitung
- customThe product was obtained in 90% yield as a glassy substance which
- customslowly crystallized