
%0 Journal Article
%A Halton, B 
%A Officer, DL 
%T Studies in the cycloproparene series: Approaches to octahydrocyclopropa-[l]phenanthrenes
%J Australian Journal of Chemistry
%D 1983/06/01
%V 36
%N 6
%P 1291-1297
%K 
%R https://doi.org/10.1071/CH9831291
%U https://www.publish.csiro.au/paper/CH9831291 
%X Cycloaddition between 1,1'-bicyclohexenyl(3) and the perhalocyclopropenes (4) affords the la,1b,2,-3,4,5,6,7,8,9,9a,9b-dodecahydrocyclopropa[/]phenanthrenes (5). Whilst halides (5a,b) are resistant to dehydrohalogenation, the difluoro derivatives (5c,d) yield 1,2,3,4,5,6,7,8-octahydrophenanthrene-9-carbaldehyde (12) with base. Under debromination conditions compound (5d) is converted into 1,2,3,4,5,6,7,8,8a,10a-decahydrophenanthrene-9-carboxylic acid (14) probably by way of the ring strained cyclopropene (9). 
