%0 Journal Article
%T <i>Ab initio</i> Theoretical Investigation of a Formal Alkene-Enedione Intramolecular [2 + 2] Photocyclization
%A Kruger
%A Hendrik G.
%A Marchand
%A Alan P.
%A Power
%A Trevor D.
%J -
%D 2001
%X Sa£żetak Irradiation of 1 with visible light results in intramolecular [2 + 2] photocyclization to afford the corresponding pentacyclic cage diketone, i.e. pentacyclo [5.4.0.02,6.03,10.05,9]undecane-8,11-dione (2). The mechanism of this reaction has been scrutinized by using ab initio theoretical methods. The results of these calculations provide new evidence which supports earlier suggestions that alkene-enedione photocyclizations may actually proceed via a diradical stepwise mechanism through the triplet excited state rather than as concerted [2 + 2] cycloadditions
%K photocyclization
%K intramolecular photocyclization
%K diketone
%K ab initio
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=194678