DEGRADATION, REARRANGEMENT AND REDUCTIVE ACETYLATION OF HEXABENZYLHEXAAZAISOWURZITANE

摘要

In the course of searching for an efficient route for reductive acylation of 1, several degradation products were characterized. For instance we have found that refluxing 1 in a solvent of the type R'COX in non-reductive conditions, a semicrystaline, functionalized, isomeric product 2 is formed. The new isomer has lost its high symmetry and turned to be highly complicated for complete NMR assignment. However, synthesis of para-Bromo derivative afforded crystals suitable for for X-ray analysis. X-ray crystallography showed that the new HBIW isomer had structure 2.