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Priority to ES508568ApriorityCriticalpatent/ES508568A0/es
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Publication of ES508568A0publicationCriticalpatent/ES508568A0/es
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
PROCEDIMIENTO PARA LA OBTENCION DE BENZOFENONAS 2,2''-DIOXIGENADAS Y EN PARTICULAR 2,2''-DIHIDROXIBENZOFENONAS, SIN SUSTITUIR O SUSTITUIDAS EN EL ANILLO BENCENICO CON UNO O MAS SUSTITUYENTES, TALES COMO ALQUILO, ALCOXILO, HALOGENOS O ACILO. CONSISTE EN LA REACCION POR IRRADIACION DE UNA DISOLUCION DE ACILOXIBENZOATOS CON LUZ DE 200 A 400 NANOMETROS, A TEMPERATURAS COMPRENDIDAS ENTRE -20<025>C Y LA EBULLICION DEL DISOLVENTE. SE EMPLEAN DISOLVENTES ORGANICOS POLARES O APOLARES. LOS PRODUCTOS DE REACCION SE SEPARAN EN UNA COLUMNA DE GEL DE SILICE. >ESTOS COMPUESTOS TIENE APLICACIONES COMO ESTABILIZADORES FRENTE A LA LUZ.
ES508568A1982-01-071982-01-07"un procedimiento de obtencion de benzofenonas 2,2'dioxigenadas y en particular 2,2'dihidroxibenzofenonas".
GrantedES508568A0
(es)