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- W2890357036 abstract "The stemona alkaloids have generated considerable interest in recent years. They are from the Stemonaceae family, which has two genera, Stemona and Croomia and are a structurally interesting class of alkaloids isolated from the roots and rhizomes of the Stemonaceae plant family. Common to all of the Stemona alkaloids is the central azapinoindole, (B, C, D system) shown in stenine below. [Illustration omitted.] The route to the stenine core which we wished to look at, envisaged using a Pd(0) catalysed [2+3] cycloaddition between an activated vinylcyclopropane substrate and a suitable imine to give the hydro indole core. A subsequent intramolecular Heck reaction could then be carried out to construct the seven-membered azepine ring of the tricylic core. [Illustration omitted.] We have already established Pd(0) catalysed [2+3] cycloaddition routes to five-membered heterocylces via the trapping of various imines with vinylcyclopropanes and we hope that using this methodology we can access the tricyclic core of stenine. [Illustration omitted.]" @default.
- W2890357036 created "2018-09-27" @default.
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- W2890357036 date "2007-01-01" @default.
- W2890357036 modified "2023-09-27" @default.
- W2890357036 title "Palladium-catalysed [2+3] cycloaddition routes to the tricyclic core of the stenine group of Stemona alkaloids" @default.
- W2890357036 hasPublicationYear "2007" @default.
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