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STERLITAMXKY O PROMY
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STERLITAMXKY O PROMY
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Priority to ES464004ApriorityCriticalpatent/ES464004A1/es
Publication of ES464004A1publicationCriticalpatent/ES464004A1/es
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Un método para la purificación de 4-metil-2,6-di-terc.butilfenol preparado por ortoalcohilación de fenol con aminometilación subsiguiente e hidrogenolisis de la M,N-dimetil-3,5-diterc.butil-4-hidroxibencilamina por cristalización en metanol, caracterizado por el hecho de que la cristalización se conduce a una temperatura comprendida dentro del intervalo de 0 a 45ºC en metanol que contiene 3 a 10% en pero de agua en una relación en peso de 4-metil-2,6-di-terc.butilfenol a dicha solución acuosa de metanol de 1:1 a 1:4.
ES464004A1977-11-101977-11-10Un metodo para la purificacion de 4-metil-2,6-di-terbutilfe-nol.
ExpiredES464004A1
(es)