Browsing by Subject "primary amines"

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    Diene Hydroaminomethylation Via Ruthenium-Catalyzed C-C Bond forming Transfer Hydrogenation: Beyond Carbonylation
    (2015-11) Oda, Susumu; Franke, Jana; Krische, Michael J.; Oda, Susumu; Franke, Jana; Krische, Michael J.
    Under the conditions of ruthenium catalyzed transfer hydrogenation using 2-propanol as terminal reductant, 1,3-dienes engage in reductive C-C coupling with formaldimines obtained in situ from 1,3,5-tris( aryl)-hexahydro-1,3,5-triazines to form homoallylic amines. Deuterium labelling studies corroborate a mechanism involving reversible diene hydroruthenation to form an allylruthenium complex that engages in turn-over limiting imine addition. Protonolysis of the resulting amidoruthenium species releases product and delivers a ruthenium alkoxide, which upon beta-hydride elimination closes the catalytic cycle. These transformations, which include enantioselective variants, represent the first examples of diene hydroaminomethylation.