
%0 Journal Article
%A Bubb, WA 
%A Sternhell, S 
%T Proton N.M.R. spectra of 1-substituted benzocyclobutenes (Bicyclo[4,2,0]octa-1,3,5-trienes)
%J Australian Journal of Chemistry
%D 1976/08/01
%V 29
%N 8
%P 1685-1697
%K 
%R https://doi.org/10.1071/CH9761685
%U https://www.publish.csiro.au/paper/CH9761685 
%X The p.m.r. spectra of 15 1-substituted benzocyclobutenes (bicyclo[4,2,0]octa-1,3,5-trienes) were analysed. The effect of substituents on the N.M.R. parameters is discussed and compared with analogous effects in other systems, especially acenaphthene which is considered a relevant model. It is concluded that substituent effects in 1-substituted benzocyclobutenes are in no way exceptional, but they appear to be less quantitatively additive than in the acenaphthene system. 
