128586-68-5Relevant articles and documents
Organocatalytic SOMO reactions of copper(I)-acetylide and alkylindium compounds with aldehydes
Tisovsky, Pavol,Meciarova, Maria,Sebesta, Radovan
, p. 1113 - 1120 (2014/05/20)
The derivatisation of aldehydes in their α-position is an important facet of organic synthesis. Organocatalytic radical reactions afford α-functionalised aldehydes via a SOMO activation pathway. New organo-SOMO reactions of aldehydes with copper(I)-acetylide and alkylindium reagents are detailed. These reactions proceed well under the catalysis of chiral imidazolidinones. The corresponding functionalised aldehydes were obtained with acceptable yields, but with only low enantiomeric ratios.
Direct regiospecific and highly enantioselective intermolecular α-allylic alkylation of aldehydes by a combination of transition-metal and chiral amine catalysts
Afewerki, Samson,Ibrahem, Ismail,Rydfjord, Jonas,Breistein, Palle,Cordova, Armando
supporting information; experimental part, p. 2972 - 2977 (2012/04/11)
The first direct intermolecular regiospecific and highly enantioselective α-allylic alkylation of linear aldehydes by a combination of achiral bench-stable Pd0 complexes and simple chiral amines as co-catalysts is disclosed. The co-catalytic asymmetric chemoselective and regiospecific α-allylic alkylation reaction is linked in tandem with in situ reduction to give the corresponding 2-alkyl alcohols with high enantiomeric ratios (up to 98:2 e.r.; e.r.=enantiomeric ratio). It is also an expeditious entry to valuable 2-alkyl substituted hemiacetals, 2-alkyl-butane-1,4-diols, and amines. The concise co-catalytic asymmetric total syntheses of biologically active natural products (e.g., Arundic acid) are disclosed. Go organic! Direct intermolecular regiospecific and highly enantioselective α-allylic alkylation of linear aldehydes by a combination of achiral bench-stable Pd0 complexes and simple chiral amines as co-catalysts is disclosed (see scheme). Copyright
Direct catalytic intermolecular α-allylic alkylation of aldehydes by combination of transition-metal and organocatalysis
Ibrahem, Ismail,Cordova, Armando
, p. 1952 - 1956 (2007/10/03)
(Chemical Equation Presented) All in the same pot together: The direct catalytic α-allylic alkylation of aldehydes and cyclic ketones is achieved by using a simple, unprecedented one-pot procedure. Transition-metal and enamine catalysis are combined so that α-allylic alkylated aldehydes and cyclic ketones are formed in high yield with a direct catalytic chemo- and regioselective method.