Dimethyl acetylenedicarboxylate → 1-(3,4-Dipropoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene

HRID 330562

Reaktionsgleichung

Reaktionsgleichung von HRID 330562
CO[CH:3]([O:17]C)[C:4]1[CH:9]=[C:8]([O:10][CH3:11])[C:7]([O:12][CH3:13])=[C:6]([O:14][CH3:15])[C:5]=1Br.[CH2:19]([O:22][C:23]1[CH:24]=[C:25]([CH:28]=[CH:29][C:30]=1[O:31][CH2:32][CH2:33][CH3:34])[CH:26]=O)[CH2:20][CH3:21].[C:35]([C:41]([O:43][CH3:44])=[O:42])#[C:36][C:37]([O:39][CH3:40])=[O:38]>>[CH2:19]([O:22][C:23]1[CH:24]=[C:25]([C:26]2[C:5]3[C:4](=[CH:9][C:8]([O:10][CH3:11])=[C:7]([O:12][CH3:13])[C:6]=3[O:14][CH3:15])[C:3]([OH:17])=[C:36]([C:37]([O:39][CH3:40])=[O:38])[C:35]=2[C:41]([O:43][CH3:44])=[O:42])[CH:28]=[CH:29][C:30]=1[O:31][CH2:32][CH2:33][CH3:34])[CH2:20][CH3:21]

Komponenten

4

Edukt 3

HCID 12980Dimethyl acetylenedicarboxylateHCID 41464793,4-DipropoxybenzaldehydeHCID 159144582-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal

Produkt 1

HCID 139108241-(3,4-Dipropoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene

Versuchsvorschrift

2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal, 3,4-dipropoxybenzaldehyde and dimethyl acetylenedicarboxylate are treated in the same manner as described in Example 1-(1) & (2), whereby 1-(3,4-dipropoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene is obtained as colorless needles.

Quellen und Nachweise

ORD-Eintrag
ord-e4797dc0c80d4f28a5edb099b809430c
Quelldatensatz
uspto-grants-1990_01
Patentnummer
US04897418

Verknüpfte Notizen

Wird geladen…