
%0 Journal Article
%A Craig, JT 
%A Halton, B 
%A Officer, DL 
%T An attempted synthesis of the 5,6-Dihydrocyclobuta[l]phenanthrene system by a Thorpe cyclization
%J Australian Journal of Chemistry
%D 1978/01/01
%V 31
%N 1
%P 225-229
%K 
%R https://doi.org/10.1071/CH9780225
%U https://www.publish.csiro.au/paper/CH9780225 
%X Methyl 10-cyanomethylphenanthrene-9-carboxylate (1e) has been subjected to conditions known to favour Thorpe cyclization, but the desired 5,6- dihydrocyclobuta[l]phenanthrene system (3) was not obtained. An alternative cyclization to give 3-ethoxydibenzo[f,h]isoquinolin-1(2H)- one (4) occurs. 
