863970-22-3Relevant academic research and scientific papers
Chiral dihydrobenzo[1,4]oxazines as catalysts for the asymmetric transfer-hydrogenation of α,β-unsaturated aldehydes
Ebner, Christian,Pfaltz, Andreas
, p. 10287 - 10290 (2012/02/01)
A new class of organocatalysts based on the structure of 2,3-dihydrobenzo[1,4]oxazine was prepared and applied in the enantioselective transfer-hydrogenation of α,β-unsaturated aldehydes with Hantzsch ester as hydride donor. These catalysts proved to be particularly effective for the conjugate reduction of β,β-diaryl-substituted acrylaldehydes leading to saturated aldehydes bearing a stereogenic center with two different aryl groups with enantioselectivities of up to 91% ee.
Highly enantioselective 1,4-addition of arylzinc reagents to 3-arylpropenals catalyzed by a rhodium-binap complex in the presence of chlorotrimethylsilane
Tokunaga, Norihito,Hayashi, Tamio
, p. 607 - 613 (2007/10/03)
Asymmetric 1,4-addition of arylzinc chlorides to (E)-3-arylpropenals proceeded with high enantioselectivity in the presence of a rhodium/(R)-binap catalyst and chlorotrimethylsilane to give, after hydrolysis, high yields of the corresponding 3,3-diarylpro
Asymmetric Synthesis of 3,3-Diarylpropanals with Chiral Diene-Rhodium Catalysts
Paquin, Jean-Francois,Defieber, Christian,Stephenson, Corey R. J.,Carreira, Erick M.
, p. 10850 - 10851 (2007/10/03)
A general route to enantioenriched 3,3-diarylpropanals is presented. These useful building blocks are prepared via an asymmetric rhodium-catalyzed conjugate addition of arylboronic acids to cinnamaldehyde derivatives in the presence of chiral dienes. The
Asymmetric 1,4-addition of arylboronic acids to α,β-unsaturated aldehydes catalyzed by a chiral diene-rhodium complex
Hayashi, Tamio,Tokunaga, Norihito,Okamoto, Kazuhiro,Shintani, Ryo
, p. 1480 - 1481 (2007/10/03)
Asymmetric 1,4-addition of arylboronic acids to α,β-unsaturated aldehydes proceeded in the presence of a rhodium catalyst (3 mol %) coordinated with a chiral diene ligand ((R,R)-Bn-bod*) to give the corresponding β-arylaldehydes with perfect 1,4-selectivi
