e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Mechanism of Azo Coupling Reactions XXXIII. pH??dependence and micromixing effects on the product distribution of couplings with 6??amino??4??hydroxy??2?? …
Abstract Azo coupling of 6-amino-4-hydroxy-2-naphthalenesulfonic acid (1) with 3- trifluoromethyl-and 4-nitrobenzenediazonium ion in relative highly concentrated aqueous alkaline solutions gave ratios of aminoazo to hydroxyazo compounds which are much higher than expected on the basis of the acid-base pre-equilibria of 1. These product ratios are disguised by effects of micromixing. In dilute solution (≤ 10− 2 mol/l) product ratios ...