A new rearrangement of fused tetracyclic heterocycles in an acidic medium in the presence of NaBH3CN

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Authors

PÍŽOVÁ Hana MAREK Radek MAN Stanislav TARABA Jan POTÁČEK Milan

Year of publication 2006
Type Article in Periodical
Magazine / Source Tetrahedron Letters
MU Faculty or unit

Faculty of Science

Citation
Field Organic chemistry
Keywords rearrangement; fused heterocycles; sodium cyanoborohydride; acidic medium
Description In acidic medium the criss-cross cycloadduct with four fused five-membered rings rearranges to a heterocyclic compound with a completely different structure consisting of two six-membered and two five-membered rings. This newly discovered rearrangement was observed in the presence of a reducing agent (NaBH3CN). The rearrangement proceeds easily and with an extremely high yield.
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