Azidohetarenes have found large interest because of its synthetic value . Their thermal properties were studied by means of differential scanning calorimetry (DSC).
In this work three types of azidohetarenes were studied: Azidohetarenes without reactive ortho substituents which are known to give amines and azo compounds were compared with ortho-phenyl and ortho-acyl substituted azidohetarenes, which gave ring closure reactions either to indoles or to five-membered heterocycles such as isoxazoles.
The temperature areas and reaction enthalpies give both information to plan the reaction
conditions and important safety information. A further aspect was to find out whether the temperatures or enthalpies give a connection with the three different reaction mechanism which were found for the three different pathways.
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