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2005
Organo-selenium compounds
S 0130
Reactions of gem-Aryl-Disubstituted Methylenecyclopropanes with Diaryl
in the Presence of Iodosobenzene Diacetate. — The iodosyl-mediated
24- 159 Diselenide
reaction of diarylmethylenecyclopropanes, e.g. (I) and (VI), with diaryl diselenides (II)
and (VII) proceeds with cyclopropane ring opening to afford bis(arylselanyl)cyclobutene derivatives (IV) and (VIII) as main products. In the presence of electron-donating aryl substituents, a further reaction with phenyliodosyl acetate takes place to give
ring-opened acetates like (XIII). — (SHI*, M.; WANG, B.-Y.; LI, J.; Eur. J. Org.
Chem. 2005, 4, 759-765; Shanghai Inst. Org. Chem., Chin. Acad. Sci., Shanghai
200032, Peop. Rep. China; Eng.) — Mischke
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