norsecurinine and securinine

norsecurinine has been researched along with securinine* in 1 studies

Other Studies

1 other study(ies) available for norsecurinine and securinine

ArticleYear
Enantioselective approach to Securinega alkaloids. Total synthesis of securinine and (-)-norsecurinine.
    The Journal of organic chemistry, 2009, Aug-21, Volume: 74, Issue:16

    The most representative securinega alkaloids have been synthesized through a new strategy involving the palladium-catalyzed enantioselective allylation of a cyclic imide, a vinylogous Mannich reaction, and a ring-closing metathesis process, as the key steps. The diastereoselectivity of the vinylogous Mannich reaction was in partial agreement with DFT theoretical calculations performed in a model system. The synthesis of (-)-norsecurine has been accomplished in nine steps from succinimide and 14% overall yield and that of securinine in 10 steps from glutarimide and 20% overall yield. Both syntheses compare favorably with those previously described. The three key transformations have been performed in a synthetically useful scale (more than 500 mg). Moreover, since the enantioselectivity was originated by a chiral phosphine ligand, the antipode of which is readily available, the same route is expected to give access to (+)-norsecurinine and virosecurinine.

    Topics: Alkaloids; Azepines; Catalysis; Euphorbiaceae; Heterocyclic Compounds, 4 or More Rings; Heterocyclic Compounds, Bridged-Ring; Imides; Lactones; Palladium; Piperidines; Quantum Theory; Stereoisomerism; Substrate Specificity

2009