Lewis Acid-Mediated Addition of 1,2-Naphthoquinones with 1,1-Diarylethylenes and Photocyclization of the Adducts: A Facile Synthesis of 3,12-Disubstituted Chrysene-5,6-diones.
Takuwa
Akio
A
Department of Chemistry, Faculty of Science, Shimane University, Nishikawatsu-cho, Matsue 690, Japan.
Kameoka
Ikuo
I
Nagira
Akihisa
A
Nishigaichi
Yutaka
Y
Iwamoto
Hidetoshi
H