Paper
Org. Biomol. Chem., 2005, 3, 84 - 96, DOI: 10.1039/b414742a
Organocatalysis with proline derivatives: improved catalysts for the asymmetric Mannich, nitro-Michael and aldol reactions
Alexander J. A. Cobb, David M. Shaw, Deborah A. Longbottom, Johan B. Gold and Steven V. Ley
Tetrazole and acylsulfonamide organocatalysts derived from proline have been synthesised and applied to the asymmetric Mannich, nitro-Michael and aldol reactions to give results that are superior to the proline-catalysed counterpart.

