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. Author manuscript; available in PMC: 2017 Oct 4.
Published in final edited form as: Angew Chem Int Ed Engl. 2016 Jun 22;55(41):12596–12624. doi: 10.1002/anie.201600547

Scheme 31.

Scheme 31

Representative reactions catalyzed by arylpyrrolidine-derived H-bond donor catalysts. TBME = tert-butyl methyl ether. 4-PPY = 4-pyrrolidinopyridine. NPASS = N-p-anisylselenyl succinimide. HMPA(S) = tris(dimethylamino)phosphorus sulfide.