"By using related Mannich reactions it was also possible to open up a flexible entry to amino sugars, carbasugars, polyoxamic acid and phytosphingosine derivatives. Furthermore, novel ulosonic acid precursors were obtained via an organocatalytic entry. The concept was extended to multicomponent cascade reactions leading to tetrasubstitued cyclohexene carbaldehydes. (...) Starting from diene containing aldehyde substrates the organocatalytic domino process could be combined with an intramolecular Diels-Alder reaction in one pot providing tricyclic carbon frameworks under control of five carboncarbon bonds and up to eight stereocenters."
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D. Enders, M. R. M. Hüttl, and O. Niemeier. "Biomimetic organocatalytic C–C-bond formations." in Organocatalysis (2008) edited by M.T. Reetz, B. List, S. Jaroch, H. Weinmann.
https://en.wikiquote.org/wiki/Organocatalysis
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Organocatalysis
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