
%0 Journal Article
%A Oommen, PK 
%T Synthesis of Methyl 2-oxo-2,3,4,4a,9,10-hexahydrophenanthrene-4a-carboxylates
%J Australian Journal of Chemistry
%D 1976/09/01
%V 29
%N 9
%P 2087-2090
%K 
%R https://doi.org/10.1071/CH9762087
%U https://www.publish.csiro.au/paper/CH9762087 
%X The reaction of methyl 7-methoxy-2-oxotetralin-1-carboxylate (2a) with methyl vinyl ketone in the presence of benzyltrimethylammonium methoxide catalyst yielded the expected tricyclic keto alcohol (3a) and the latter on dehydration with p-toluenesulphonic acid gave the unsaturated ketone (la). This constitutes a general method of synthesis of the title compounds. When sodium methoxide was used as the catalyst in the above reaction, (la) was not obtained. 
