Reacción #575316

Ecuación de reacción

(E)-3-(4-acetoxy-5-ethyl-3-methoxy-1-naphthyl)-2-methylpropenoic acid

→

titled compound

Rendimiento 40.9%

(Z)-3-(4-acetoxy-5-ethyl-3-methoxy-1-naphthyl)-2-methylpropenoic acid

Rendimiento 40.9%

Disolventes

acetone

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroirradiated with light from a high pressure mercury lamp through a Pyrex
2. 2
   Filtraciónfilter at room temperature for 3 hours
3. 3
   ConcentraciónThe reaction mixture was concentrated in vacuo
4. 4
   Otropurified by silica gel column chromatography (3% methanol/chloroform)

Procedimiento

1.15 g of (E)-3-(4-acetoxy-5-ethyl-3-methoxy-1-naphthyl)-2-methylpropenoic acid was dissolved in 200 ml of acetone and irradiated with light from a high pressure mercury lamp through a Pyrex filter at room temperature for 3 hours. The reaction mixture was concentrated in vacuo and purified by silica gel column chromatography (3% methanol/chloroform) to obtain 470 mg of the titled compound as colorless crystals.

Fuente