Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ES388801Aexternal-prioritypatent/ES388801A1/en
Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Priority to ES391577ApriorityCriticalpatent/ES391577A1/en
Publication of ES391577A1publicationCriticalpatent/ES391577A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of aminoazo dyes of the general formula: ** (see formula) ** Wherein r represents h or an alkyl group, d is the residue of an aminoazo compound wherein the r atoms of the azo group or groups are attached to the carbon atoms of homocyclic aromatic nuclei, and x represents a 2-s- nucleus. Triazinyl containing a chlorine or bromine atom attached to the carbon atom 4 or an amino or substituted amino group, attached to the carbon atom 6, characterized in that it comprises treating a dye of the above formula wherein x represents a group 4,6 -dichloro- or dibromo-s-triazin-2-yl with ammonia or an amine. (Machine-translation by Google Translate, not legally binding)
ES391577A1970-03-021971-05-26Procedure for the preparation of aminoazoic colorants. (Machine-translation by Google Translate, not legally binding)
ExpiredES391577A1
(en)