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Bayer AG
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Bayer AG
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Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Procedimiento para la obtención de tetrazaporfina y colorantes afines caracterizado porque 1-4 moléculas de 2-amino-5-imino-pirroleninas de la fórmula general **(Ver fórmula)** R= alquilo cicloalquilo aralquilo fenilo halógeno hidrógeno R'= alquilo cicloalquilo aralquilo halógeno R+R'= pueden ser miembros de un anillo cicloalquilénico se someten con 3-0 moléculas de 1-amino-3-isoindolenina preferentemente en presencia de agentes disolventes ligeramente reductores orgánicos así como de metales pesados o compuestos de metales pesados a un tratamiento térmico.
ES0219376A1954-01-071955-01-05Procedimiento para la obtencion de tetrazaporfinas
ExpiredES219376A1
(es)