
%0 Journal Article
%A Baradarani, Mehdi M. 
%A Khalafy, Jabbar 
%A Prager, Rolf H. 
%T A Comparison of the Flash Vacuum Pyrolysis Products of Some <emph type="2">N</emph>-Acylbenzotriazoles and <emph type="2">N</emph>-Acylbenzisoxazolones
%J Australian Journal of Chemistry
%D 1999/08/27
%V 52
%N 8
%P 775-780
%K 
%R https://doi.org/10.1071/CH99037
%U https://www.publish.csiro.au/paper/CH99037 
%X The flash vacuum pyrolysis (f.v.p.) products of 2-(1H-benzotriazol-1-ylcarbonyl)benzonitrile, methyl 2-(1H-benzotriazol-1-ylcarbonyl)benzoate and 1-(2-chloromethylbenzoyl)-1H-benzotriazole and the cor- responding benzisoxazolones have been characterized. The benzotriazole derivatives gave compounds whose origin suggests the predominance of radical processes. At lower temperatures the benzisoxa- zolones gave benzoxazole products consistent with a singlet carbene intermediate, but which had triplet diradical properties at higher temperatures, leading to the formation of acridine from the chloromethyl compound. The major low-temperature f.v.p. product from the (chloromethylbenzoyl)benzisoxazolone was indolo&#91;1,2-b&#93;benzoxazole. 
