
%0 Journal Article
%A Spear, RJ 
%A Sternhell, S 
%T Influencing of Ring Size on Germinal Interproton Coupling Constants in Exocyclic Methylene Groups
%J Australian Journal of Chemistry
%D 1985/06/01
%V 38
%N 6
%P 889-897
%K 
%R https://doi.org/10.1071/CH9850889
%U https://www.publish.csiro.au/paper/CH9850889 
%X In systems where substituent effects are constant, there is a well defined trend in the magnitude of geminal  interproton coupling constants in exocyclic  methylene groups with ring size. Reduction of ring size from six to five to four results in a monotonic reduction in the magnitude of Jgem. These trends apply to methylenecycloalkanes , methylenebenzocycloalkenes and &#945;- methylenecycloalkanones . There is an indication that the trend does not continue for methylenecyclopropanes. A number of new exocyclic-methylene compounds have been designed and synthesized to provide specific experimental data. 
