| abstract |
A PROCEDURE FOR THE PREPARATION OF RESORUPHIN DERIVATIVES OF GENERAL FORMULAS IA AND IB IS REQUESTED IN WHICH R.1, R.2, R.3 AND R.5, WHICH MAY BE THE SAME OR DIFFERENT IN EACH CASE, MEAN HYDROGEN, A GROUP CARBOXI, CARBOXAMIDO, LOWER ALCOXY, CARBONYL, CYANE OR NITRO, A RADICAL LOWER ALKYL OR LOWER ALCOXY, WHICH IN EACH CASE MAY BE SUBSTITUTED WITH GROUPS CARBOXY, CARBOXAMIDE, CARBOXAMIDE, REPROPRESSIVE NARCOXYL OR PODIUM CARBONYL, PURPLE ORNESS. R.5, IN COMMON, A CONDENSED AROMATIC COMPOUND, Z MEANS A BRIDGE MEMBER, A MEANS THE RADICAL OF A LIGAND, AND N MEANS A WHOLE NUMBER FROM 1 TO 200. ITS PREPARATION IS CARRIED OUT IN SEVERAL STAGES THROUGH REACTIVE DERIVATIVES OF TRORIOHYD DERIVATIVES , WHICH EITHER REACT DIRECTLY WITH REACTIVE OR ANALOGUE LINKS OR LINKS, OR MAY BE LINKED WITH THESE THROUGH THEIR SPACER. |