ChemInform Abstract: LEAD TETRAACETATE OXIDATION OF TRIS(ARYLHYDRAZONES) OF CYCLOHEXANE‐1,2,3‐TRIONES

Abstract

Die symm. bzw. unsymm. Trisarylhydrazone (I) bzw. (VI) werden nach Literaturmethoden hergestellt (55‐80%) und der Oxidationsreaktion A) unterworfen.

Heterocyclic Rearrangement of 4,5,6,7‐Tetrahydro‐6,6‐dimethyl‐benzo[c][1,2,5]oxadiazol‐4‐one (Z)‐Arylhydrazones into Corresponding 2‐Aryl‐4,5,6,7‐tetrahydro‐2H‐benzo[d][1,2,3]triazol‐4‐one Oximes

“…We have reported previously [ 13 [2] that attempts to induce thermal or photochemical mononuclear heterocyclic rearrangement in 2-aryl-4,5,6,7-tetrahydro-6,6-dimethyl-2Hbenzo[d] [ 1,2,3]triazo1-4-one (Z)-arylhydrazones were unsuccessful. This prompted us to a more systematic study in order to examine whether this unsuccessful rearrangement [3] i Z; either due to the thermodynamical stability of the triazole ring [4] [5] or to an unfavored geometry of the condensed ring system.…”