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Ursachen der Harnstoffkatalyse einer Dis-Azokupplung. 23. Mitteilung zur kenntnis der azokupplungsreaktion |
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| Authors: | B Gloor H Zollinger |
| Abstract: | The kinetics of the second step in the formation of a dis-azocompound from 4, 4′-bis-diazobiphenyl (bisdiazotized benzidine) with 2-naphthol-3, 6-disulfonic acid have been investigated in the presence of various concentrations of urea up to 6,6 M in aqueous buffers. The catalytic action of urea is due to a disaggregation of the diazonium ion aggregates, a base catalysis and a dielectric medium effect. |
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