The polycyclic analogues of tetryl

THE POLYCYCLIC ANALOGUES OF TETRYL 3,5,3, 5 -Tetranitr o-4,4 -di(methyInitramiiio)-benzophenone 

Romburgh [73] prepared this substance by nitrating Michler s ketone. Gali-nowski and T. Urbanski [74] obtained the same substance by nitrating auramine with a mixture of nitric and sulphuric acids. On heating with 2% KOH the substance was converted into the corresponding nitrophenol. 

Compound (II), on treatment with concentrated nitric acid, adds nitric acid and reverts to compound (I)  

HoYflfiitrodiDhenvIethvUnMiinitrainine (also called ditetryl, bitetryl, or octyl) 

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