(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate, min. 98%

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.