As the occasion where it hydrogenates reduces the manufacturing method null sulfur containing compound

摘要

This invention offers the hydrogenation restoration method of the containing sulfur chemical compound which uses the precious metal catalyst. In addition, this invention the 2- arukeniru -3- thiophene derivative using the precious metal catalyst, hydrogenating restoring, offers the methodological industrial method the economical efficiency which produces the 2- alkyl -3- amino thiophene derivative being high. As for the 2- alkyl -3- amino thiophene derivative the useful basket in medicine agricultural field it is naive, it is useful as a bactericide, or that intermediate field for especially farm art. For example, reaction temperature you collect the used precious metal catalyst by the fact that it makes the 150C - the 300C by using the precious metal catalyst, hydrogenating restores the 2- arukeniru -3- thiophene derivative it produces the 2- alkyl -3- amino thiophene derivative at the time of, and it becomes possible to reuse. This way, because this invention containing sulfur chemical compound using the precious metal catalyst, hydrogenating restoring at reaction temperature of the 150C - the 300C, the precious metal catalyst you can collect can reuse it is effective as an industrial hydrogenation restoration method.