Veratraldehyde → 1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene

Beteiligte Stoffe

Rolle	Name	HCID	Einwaage
Edukt	Veratraldehyde	HCID 8419	—
Edukt	Diethyl acetylenedicarboxylate	HCID 69803	—
Edukt	2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal	HCID 15914458	—
Produkt	1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene	HCID 10577734	—

Reaktionsschritte

2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal, 3,4-dimethoxybenzaldehyde and diethyl acetylenedicarboxylate are treated in the same manner as described in Example 1-(1) and (2), whereby 1-(3,4-dimethoxyphenyl-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene is obtained as colorless crystals.

Herkunft & Nachweise

DOI	10.6084/m9.figshare.5104873.v1
Patentnummer	US04771072
Quelldatensatz	uspto-grants-1988_09
ORD ID	ord-6b3c5ef8608443f7a19e6e37c842cb59
Quellennotiz	uspto-grants-1988_09