
%0 Journal Article
%A Cosmo, R 
%A Sternhell, S 
%T Synthesis of 4-(4'-Chlorophenyl)-5-Phenyl-1,2-Dihydronaphthalene
%J Australian Journal of Chemistry
%D 1987/09/01
%V 40
%N 9
%P 1499-1509
%K 
%R https://doi.org/10.1071/CH9871499
%U https://www.publish.csiro.au/paper/CH9871499 
%X BF3-catalysed cyclization reactions of 1-(biphenyl-2'-y1)- 1-(4&#8243;-chlorophenyl)but-3-en-1-ol yielded none of the desired title compound but only 9-(4'-chloropheny1)-10-ethylphenanthrene and 9-allyl-9-(4'-chlorophenyl) fluorene by alternative cyclization pathways. Corresponding cyclization of the related diene 1-(biphenyl-2'-yl)-1-(4&#8243;-chlorophenyl)buta-1,3-diene also failed to yield the desired title compound but gave instead the unexpected product 9-(4'-chlorophenyl) phenanthrene through a novel mechanism. Flash pyrolysis of l-(biphenyl-2'-yl)-l-(4&#8243;-chlorophenyl)buta-1,3-diene gave the desired compound as a minor constituent of the reaction mixture, the major constituent being 4-(biphenyl-2'-yl)-7-chloro- 1,2-dihydronaphthalene. 
