
%0 Journal Article
%A Smith, RAJ 
%T Steric inhibition of &#960;-electron delocalization in acyclic aryl ketones. Conformational analysis of 19-Aryl-12-methoxypodocarpa-8,11,13-trien-19-ones
%J Australian Journal of Chemistry
%D 1983/06/01
%V 36
%N 6
%P 1275-1279
%K 
%R https://doi.org/10.1071/CH9831275
%U https://www.publish.csiro.au/paper/CH9831275 
%X The syntheses of 12-methoxy-19-phenylpodocarpa-8,11,13-trien-19-one, 19-(p-chlorophenyl)-12- methoxypodocarpa-8,11,13-trien-19-one and 19-(p-bromophenyl)-12-methoxypodocarpa-8,11,13- trien-19-one are presented. From u.v. and 13C n.m.r. studies, the preferred conformation for these molecules embodies a non-coplanar arrangement of the pendant aryl ketone moiety. These compounds represent rare cases of non-coplanar acyclic aryl ketones which do not contain bulky ortho substituents. 
