
%0 Journal Article
%A Daly, NJ 
%A Heweston, GM 
%A Ziolkowski, F 
%T The thermal decompositions of casbamates. III. Ethyl N,N-dimethylcarbamate and the effect of N-substitution upon the &#946;-elimination
%J Australian Journal of Chemistry
%D 1973/06/01
%V 26
%N 6
%P 1259-1262
%K 
%R https://doi.org/10.1071/CH9731259
%U https://www.publish.csiro.au/paper/CH9731259 
%X Ethyl N,N-dimethylcarbamate thermolyses to, N,N-dimethylamine, carbon dioxide, and ethylene in a homogeneous molecular reaction. First-order rate constants are described in s-1 units by the equation                             log k = 12.10-(44340±400)/&#952;   where &#952; = 4.576T. The pattern of substituent effects for N-substitution and values of &#916;S? for several N-substituted carbamates show that ring closure through the carbonyl oxygen is favoured over the alternative cyclization involving the nitrogen atom. 
