
%0 Journal Article
%A Gray, MJ 
%A Hartshorn, MP 
%A Richards, KE 
%A Robinson, WT 
%A Sutton, KH 
%A Thompson, RS 
%A Vaughan, J 
%T The nitration of 1,2,3,4-tetramethyl-5,6-dinitrobenzene; X-ray crystal structure of <I>cis</I>-2,5,6,6-Tetramethyl-2,3,4,5-tetranitrocyclohex-3-enone
%J Australian Journal of Chemistry
%D 1982/06/01
%V 35
%N 6
%P 1237-1243
%K 
%R https://doi.org/10.1071/CH9821237
%U https://www.publish.csiro.au/paper/CH9821237 
%X Nitration of 1,2,3,4-tetramethyl-5,6-dinitrobenzene (1) with fuming nitric acid in dichloromethane gives cis-and trans-2,5,6,6-tetramethyl-2,3,4,5-tetranitrocyclohex-3-enones (9) and (10), the structure of the cis isomer being confirmed by X-ray crystal structure analysis. The mechanism of formation of tetranitro ketones (9) and (10) is discussed. 
