155474-09-2Relevant academic research and scientific papers
Base-Induced Photocyclization of 1,2-Diaryl-1-tosylethenes. A Mechanistically Novel Approach to Phenanthrenes and Phenanthrenoids
Almeida, Jesus F.,Castedo, Luis,Fernandez, Dolores,Neo, Ana G.,Romero, Victor,Tojo, Gabriel
, p. 4939 - 4941 (2003)
(Equation presented) The irradiation with UV light of a number of 1,2-diaryl-1-tosylstilbenes, in the presence of base, leads to the corresponding phenanthrenes and heterocyclic analogues. These results are consistent with a mechanism involving the base-induced elimination of p-toluenesulfinic acid from an intermediate 9-tosyl-4a,4b-dihydrophenanthrene, formed by photochemical cyclization of the starting 1,2-diaryl-1-tosylstilbenes.
