| Título: | The oxidation of hydroxybenzaldehydes with chlorine dioxide and sodium chlorite. |
| Autores: | Logan, Charles Donald. |
| Fecha: | 1949 |
| Publicador: | McGill University - MCGILL |
| Fuente: |
 |
| Tipo: | Electronic Thesis or Dissertation |
| Tema: | Chemistry. |
| Descripción: | [...]Realizing the great deficiency of knowledge in this field, the Wood Chemistry Committee of the Technical Section, Canadian Pulp and Paper Association, recommended a thorough investigation of the effects of halogen-containing oxidants on wood and its constituents. This research was very capably initiated by Dr. R.M. Husband, who undertook a carefully controlled study of the actions of sodium chlorite and chlorine dioxide on such model substances of lignin as pyrogallol, vanillin and syringealdehyde. It was hoped that these model studies would provide valuable information which would be helpful in the later studies of the oxidation of the more complex lignin molecule. However innumerable difficulties were encountered as a result of the complex behaviour of the oxidants and the labile nature of the quinoidal organic products. The object of this Thesis was to extend the earlier work: carried out by Dr. Husband. In order to avoid the sensitive products formed by the oxidation of phenols activated by a free hydroxyl group, ethers such as acetylvanillin and veratraldehyde were also oxidized. With such less active ethers, it was possible to make a sharper distinction between the action of chlorite and of chlorine dioxide under various conditions. [...] |
| Idioma: | en |
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