3 years ago

Stereoselective Photodimerization of 3-Arylindenones in Solution and in the Solid State

Stereoselective Photodimerization
of 3-Arylindenones
in Solution and in the Solid State
Naohiro Uemura, Hiroki Ishikawa, Masami Sakamoto, Yoshio Kasashima, Naoki Tamura, Takashi Mino, Yasushi Yoshida
Photodimerization of 3-arylindenones in solution and in the solid state was examined. Irradiation of 3-arylindenones in benzene exclusively gave C2-symmetric anti-HH cyclobutane dimers in good yields. In contrast, photolysis in the solid state afforded syn-HH cyclobutane dimers efficiently, which was considerably influenced by the molecular arrangement in the crystal lattice.

Publisher URL: http://dx.doi.org/10.1021/acs.joc.7b03147

DOI: 10.1021/acs.joc.7b03147

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