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Roche Palo Alto LLC
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Roche Palo Alto LLC
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Publication of ES410165A1publicationCriticalpatent/ES410165A1/es
Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Un procedimiento para preparar el ácido 2-(6-metoxi-2-naftil)proiónico que consiste en a) hacer reaccionar el 2-metoxinaftaleno con un propionato 2-sustituido de alquilo inferior en presencia de un ácido de Lewis , en un disolvente orgánico inerte de 0º a 60ºC, hasta que se forma el correspondiente 2-(6-metoxi-2-naftil)propionato de alquilo inferior, siendo el sustituyente en 2 del propionato 2-sustituido un átomo de cloro, de bromo o yodo o un grupo hidroxi o aciloxi inferior; b) hidrolizar el grupo éster del 2-(6-metoxi-2-naftil)propionato de alquilo inferior y c) recuperar de la mezcla reaccionate el ácido 2-(6-metoxi-2-naftil)propiónico y resolverlo para obtener el ácido d 2-(6-metoxi-2-naftil) propiónico.
ES410165A1969-09-301972-12-29Un procedimiento para preparar el acido 2-(6-metoxi-2-naf- til) propionico.
ExpiredES410165A1
(es)