Sulphur dioxide mediated conversion of strained furazan N-oxides into di-isocyanates
Abstract
Thermolysis of strained furazan N-oxides of the norbornane series results in fragmentation of the oxadiazole ring, the isolated products being di-isocyanates when the reactions are carried out in the presence of sulphur dioxide, while in its absence unstrained polymeric furoxans are formed.