Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Year | Description |
| 1996 | Invention patented by Rainer Hamprecht and Claudia Muller on February 27th, 1996. Abstract: A process for the preparation of compounds of the formula ##STR1## wherein the substituents X, Y and Z have the meaning given in the description, by reaction of compounds of the formula ##STR2## with a cyanide and an oxidizing agent other than Br.sub.2 in the presence of halides which offers industrial hygiene advantages and renders possible large-scale industrial access to dyestuff syntheses has been found. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.