| 摘要 |
<p>A new process for preparing 3,3 - thio - bis 2-me-thoxy-1-azabenzathrone!, a useful intermediate in the synthesis of dyestuffs, is disclosed. The process involves reacting 2-methoxy-1-azabenzanthrone with sulfur chlorides in suspension or solution in an inert solvent under heating, and recovering the reaction product from the reaction mass, e.g., by filtering.</p> |
