100820-48-2Relevant academic research and scientific papers
NOVEL RING CONTRACTION OF 4,6-DIHYDRO-3,7-DIPHENYL-5-(p-TOSYL)-1,2,5-TRAZEPINE VIA A CHLORINATION
Kamata, Kichinosuke,Tsuge, Otohiko
, p. 1674 - 1680 (2007/10/02)
In the chlorination 4,6-dihydro-3,7-diphenyl-5-(p-tosyl)-1,2,5-triazepine undergoes a novel ring contraction in methanol to afford pyrrolidines and morpholines which are arisen from the extrusion of nitrogen, in contrast to the formation of the 4-(p-tosylamino)pyridazine and/or 4,6-dichlorodihydrotriazepine in an aprotic solvent.
