Maxim R. Demidov, Vitaly A. Osyanin, Yury N. Klimochkin
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An oxidative cleavage of arene-condensed 4H-pyrans via the Grob–Wharton fragmentation
When benzannulated dihydroindenochromene and dihydroxanthene derivatives were treated with m-chloroperoxybenzoic acid, oxidative cleavage of the pyran C=C bond and the formation of condensed ketolactones, the derivatives of oxonine-2,6-dione and oxecine-2,7-dione, took place. The reaction proceeded via epoxidation of the pyran double bond followed by the opening of the epoxide and Grob–Wharton fragmentation.
期刊介绍：
The international journal Chemistry of Heterocyclic Compounds publishes original papers, short communications, reviews, and mini-reviews dealing with problems in the field of heterocyclic chemistry in Russian and English. The Journal also publishes reviews and annotations on new books and brief reports on conferences in the field of heterocyclic chemistry, as well as commemoratives dedicated to prominent heterocyclic chemists.
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