Publications by authors named "Marina A Vinokurova"

The title compound, CHNOS, crystallizes with two independent mol-ecules ( and ) in the asymmetric unit. In the central ring systems of both mol-ecules, the tetra-hydro-furan rings adopt envelope conformations, the pyrrolidine rings adopt a twisted-envelope conformation and the six-membered ring is in a boat conformation. In mol-ecules and , the nine-membered groups attached to the central ring system are essentially planar (r.

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The ring rearrangement metathesis (RRM) of a - diastereomer mixture of methyl 3-allyl-3a,6-epoxyisoindole-7-carboxylates derived from cheap, accessible and renewable furan-based precursors in the presence of a new class of Hoveyda-Grubbs-type catalysts, comprising an N→Ru coordinate bond in a six-membered ring, results in the difficult-to-obtain natural product-like cyclopenta[]furo[2,3-]pyrroles. In this process, only one diastereomer with a -arrangement of the 3-allyl fragment relative to the 3a,6-epoxy bridge enters into the rearrangement, while the -isomers polymerize almost completely under the same conditions. The tested catalysts are active in the temperature range from 60 to 120 °C at a concentration of 0.

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