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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1285258Erstellt: 26. Oktober 2026

Ethyl 7-hydroxy-4-oxo-8-propyl-4H-chromene-2-carboxylate → 2-Carboethoxy-7-[5-(2-n-propylphenoxy)pentoxy]-8-n-propylchromone

https://huagongshe.com/reaction/1285258

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktEthyl 7-hydroxy-4-oxo-8-propyl-4H-chromene-2-carboxylateHCID 4196515—
Edukt1-(5-Bromopentoxy)-2-propylbenzeneHCID 13773208—
Produkt2-Carboethoxy-7-[5-(2-n-propylphenoxy)pentoxy]-8-n-propylchromoneHCID 1353786480%

Reaktionsschritte

Using essentially the method of Example 2, 2.76 g (10 mmole) of ethyl 7-hydroxy-8-n-propylchromone-2-carboxylate and 8.18 g (11 mmole) of 5-(2-n-propylphenoxy)-1-bromopentane, gave 3.84 g (80%) of the title compound, mp 73°-75°. Calc: C, 72.48; H, 7.55; Found: C, 72.24; H, 7.63.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04565882
Quelldatensatzuspto-grants-1986_01
ORD IDord-ca1faadb2fbb456d9e8118d014964647
Quellennotizuspto-grants-1986_01