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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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Publication date
Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Publication of ES421817A2publicationCriticalpatent/ES421817A2/es
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
ES421817A1973-12-271973-12-27Procedimiento para la obtencion de colorantes azoicos li- bres de grupos acido sulfonico y acido carboxilico.
ExpiredES421817A2
(es)
Un procedimiento para la produccion de un ester aminoalqui- lico de un acido 2, 6-dialquil (inferior)-4-fenil sustitui- do-1, 4-dihidropiridin-3-carloxilico.