Abstract
The broad potential synthetic usefulness of phosphine-promoted
reactions has stimulated many recent investigations on enantioselective
variants of known reactions of this family, as well as the search
for new, specifically designed, chiral phosphorus catalysts. This
short overview summarizes the state of the art in this field and
highlights the most significant achievements, with special emphasis
on our recent work.
1 Introduction
2 Chiral Phosphine Organocatalysts
2.1 Cyclic and Bicyclic Phosphines
2.2 Acyclic Phosphines with Hydrogen-Bonding Functionalities
3 Enantioselective Phosphine-Promoted Reactions
3.1 Acylation of Alcohols and Other Acyl-Transfer Reactions
3.2 Morita-Baylis-Hillman-type Reactions
3.3 [3+2] and [4+2] Cyclizations
between Allenes and Imines
3.4 [3+2] Cyclizations between Allenes
and α,β-Unsaturated Ketones and Esters
3.5 Addition of Nucleophiles to Unsaturated Electron-Poor Substrates
3.6 Allylic Substitutions on Morita-Baylis-Hillman
Adducts
3.7 Miscellaneous Reactions
4 Summary and Outlook
Key words
enantioselective catalysis - chiral phosphines - organocatalysis - nucleophilic activation