83179-47-9Relevant academic research and scientific papers
The Photochemistry of 2-Vinyldiphenylacetylene and Related Compounds
Brouw, Paul M. op den,Laarhoven, Wim H.
, p. 795 - 800 (2007/10/02)
Irradiation of solutions of 2-vinyldiphenylacetylene (5) under anaerobic conditions gives 2-phenylnaphtalene (9) in 90 percent yield.Several derivatives of (5) behave similarly.The reaction is ascribed to the primary formation of a cyclic allene (29), as has been proposed previously for the analogous photocyclization of 1,4-diarylbutenynes into phenylaromatic compounds.The end-product arises from (29) either via a 1,5-hydrogen shift or by addition and elimination of a proton.Irradiation of 2-ethynylstilbene (21) also yields (9), but 1-ethynylphenanthrene (22) is formed as a side-product.
