
%0 Journal Article
%A Bergamasco, R 
%A Porter, QN 
%T Vinylindenes and some heteroanalogues in the Diels-Alder reaction. II. Substituted fluorenes from 3-vinylindenes
%J Australian Journal of Chemistry
%D 1977/05/01
%V 30
%N 5
%P 1061-1071
%K 
%R https://doi.org/10.1071/CH9771061
%U https://www.publish.csiro.au/paper/CH9771061 
%X 3-Vinylindene, 2-methyl-3-vinylindene and 3-isopropenylindene give normal, photostable adducts with ethenetetracarbonitrile by a Diels- Alder process. The first diene gives adducts with maleic anhydride, N- phenylmaleimide and dimethyl acetylenedicarboxylate. Where there is stereochemical ambiguity the adducts are shown by mass spectrometry to be exclusively endo. Two heterocyclic analogues are formed from 3- vinylindene with p-toluenesulphonyl cyanide and N-sulphinyl-p- toluenesulphonamide. 
