1502-19-8Relevant academic research and scientific papers
Photochemistry of Trans-Fused Bicyclo 2,4-Dienes. Ground-State Conformational Control in Rigid Systems.
Dauben, William G.,Olsen, Eric G.
, p. 3377 - 3382 (1980)
The photochemistry of a series of simple trans-fused bicyclo 2,4-dienes (n=3, 4, 5) which possess semirigid structures in the ground state has been studied. trans-Bicyclonona-2,4-diene gave rise to cis,cis,cis-cyclonona-1,3,5-triene, the first example of a nonaccordant cyclohexadiene ring opening.The trans-bicyclodeca-2,4-diene at -40 deg C, using 254-nm light, yielded trans,cis,trans-cyclodeca-1,3,5-triene.This triene upon further irradiation yielded endo,endo-tricyclo2,10>dec-8-ene.The triene was extremely thermally labile and was readily converted to cis-bicyclodeca-2,4-diene.At -78 deg C, the photostationary state of trans-bicyclodeca-2,4-diene showed a wavelenght dependency.The photochemistry of trans-bicycloundeca-8,10-diene was analogous to that of the ten-carbon analogue.
