6,8-Dimethylpyrimido4,5-cpyridazine-5,7(6H,8H)-dione: a novel approach to imidazoline (imidazole) ring annulation based on the S-N(H) methodology

摘要

The N-(2)-oxide and 3-amino derivatives of the title compound react with alkylamines in the presence of an oxidant,to produce condensed imidazolines or their imidazole analogues. References: 8