Technical Notes:

1.Scope of the asymmetric intramolecular Stetter recation catalyzed by chiral nucleophilic triazolinylideneCarbens

2.Catalytic asymmetric Stetter reaction onto vinyl phosphine oxide and vinyl phosphonates .

3.N-Heterocyclic carbene catalyzed asymmetric hydration: Direct synthesis of a-protio and a-deuterio, a chloro and a-fluoro carboxylic acids

4.Chemoselective conversion of a-unbranched aldehydes to amides, esters and carboxylic acids by NHC-catalysis.

5.Extending the Stetter reaction with 1-6 acceptors .

6.N-Heterocyclic carbene-catalyzed/L ewis acid strategy for the stereoselective synthesis of spirocyclic

oxindole -dihydropyranones.

7.Access to P-stereogenic phosphinatesviaN-heterocycle

carbene- catalyzed desymmetrization of bisphenols.

8.N-Heterocyclic carbene catalyzed intramolecular nucleophilic substitution: Enantioselective construction of all carbon quaternary stereocenters.