PROCESS FOR THE PREPARATION OF A MIXTURE OF 1:2 COBALT COMPLEX AND 1:2 CHROMIUM COMPLEX AZO DYESTUFFS

摘要

Method for preparing Cobalt Complex Azo Dyes in 1: 2 and 1: 2 Chromium complex of the formula (1) where I is Cobalt or Chromium, R IS h, Methyl or methoxy,Being linked to the benzene Nucleus, M is H or alkali metal or Alkaline Earth Metal and the Group - SO2 - CH2 CH2 - oso3m is linked to the benzene Nucleus in the molar ratio of 1: 1, 5: 5It diazoa 4 - nitro - 2 - aminofenoly copulates with acid is 1 - amino - 8 - hydroxy - 3.6 - naftalin disulfonico obtaining the formula II, where m values given above,The Compound is transformed to the equivalent amount of a Cobalt Chromium or Releasing Agent, a compound of the formula III, where I and M have already been indicated.Then the formula of the compound is reacted with a compound of formula IV,Where M and R have the meanings, and the beta sulfatoetilsulfonilo Group is linked to the benzene Nucleus; The reaction of metallization of the compound of formula II is performed with an AgenYou Like the assignor of the assignor or Cobalt chrome with a molar ratio of 5: 1 to 1: 5 and the compound of the formula II is transformed into a mixture of compounds 1 and 2: complex of cobaltChrome 1: 2 of the formula III,This mixture of compounds in Complex Cobalt Chromium 1: 2 and 1: 2 of the formula III is reacted with a compound of formula IV, and the reactions were carried out in a procedureIco.