124176-00-7Relevant academic research and scientific papers
Stereoselective Addition Reaction of Diethylzinc to Aldehydes, Catalyzed by Cinchona Alkaloids
Smaardijk, Ab. A.,Wynberg, Hans
, p. 135 - 137 (1987)
The cinchona alkaloid catalyzed reaction of diethylzinc and aldehydes leads to optically active alcohols having enantiomeric excesses up to 92percent.
Design and synthesis of a tridentate ligand for asymmetric bifunctional catalysis
Casarotto, Virginie,Li, Zhongtao,Boucau, Julie,Lin, Yun-Ming
, p. 5561 - 5564 (2008/03/12)
Covalent attachment of a quinine moiety to a Schiff base ligand through an ester linkage generates a novel tridentate ligand that gives a new Lewis acid-Lewis base (LA-LB*) bifunctional catalyst having a mixture of the LA configurations. The LB
A new chiral pyrrolidine- and pyrrolidinone-ethanols for enantioselective addition of diethylzinc to arylaldehydes
Okuyama, Yuko,Nakano, Hiroto,Igarashi, Mayumi,Kabuto, Chizuko,Hongo, Hiroshi
, p. 635 - 643 (2007/10/03)
New chiral pyrrolidineethanols and unusual type of pyrrolidinoneethanol fused bicyclo[2.2.2]octane ring systems as backbones were synthesized and were used to the addition of diethylzinc to aromatic aldehydes to afford the secondary aryl alcohols leading
New chiral pyrrolidinyl- and 2-azanorbornyl-oxazolidine ligands for enantioselective addition of diethylzinc to aldehydes
Nakano, Hiroto,Okuyama, Yuko,Fushimi, Kazuyuki,Yamakawa, Ryo,Kayaoka, Daisuke,Hongo, Hiroshi
, p. 457 - 466 (2007/10/03)
A new type of optically active ligands, pyrrolidinyl- (3a-c) and 2-azanorbornyloxazolidines (6a-d) were synthesized and their abilities as ligands were examined in the enantioselective addition of diethylzinc to aromatic and aliphatic aldehydes to give op
Synthesis of new chiral catalysts, 2-azanorbornyloxazolidines, for enantioselective addition of diethylzinc to aldehydes
Nakano, Hiroto,Okuyama, Yuko,Iwasa, Kazuto,Hongo, Hiroshi
, p. 411 - 418 (2007/10/03)
Optically active 2-azanorbornyloxazolidines were prepared from 2-azanorbornylmethanols and catalyzed the enantioselective addition of diethylzinc to aldehydes to give optically active secondary alcohols.
Synthesis of new chiral catalysts, isoquinuclidinylmethanols, for the enantioselective addition of diethylzinc to aryl aldehydes
Nakano, Hiroto,Iwasa, Kazuto,Hongo, Hiroshi
, p. 435 - 442 (2007/10/03)
New chiral ligands, isoquinuclidinylmethanols, were prepared and their catalytic abilities of asymmetric induction were examined in the addition of diethylzinc to aldehydes to furnish secondary alcohols in up to 76percent e.e.
Enantioselective addition of diethylzinc to aldehydes using 2-azanorbornylmethanols and 2-azanorbornylmethanethiol as a catalyst
Nakano, Hiroto,Kumagai, Noriyuki,Matsuzaki, Hisao,Kabuto, Chizuko,Hongo, Hiroshi
, p. 1391 - 1401 (2007/10/03)
Optically active 2-azanorbornylmethanols and 2-azanorbomylmethanethiol were prepared from ethyl (1S,3S,4R)-2-[(R)-1-phenylethyl]-2-azabicyclo[2.2.1]hept-5-ene- 3-carboxylate and catalyzed the enantioselective addition of diethylzine to aldehydes to give o
Synthesis of new chiral catalysts, isoquinuclidinylmethanethiols, for the enantioselective addition of diethylzinc to aryl aldehydes
Nakano, Hiroto,Iwasa, Kazuto,Hongo, Hiroshi
, p. 267 - 274 (2007/10/03)
New chiral ligands, isoquinuclidinylmethanethiols, were prepared and their catalytic abilities of asymmetric induction were examined in the addition of diethylzinc to aldehydes to furnish secondary alcohols in up to 94% ee.
Synthesis of new chiral catalysts, N-alkyl-2-azanorbornyl-methanols, for the enantioselective addition of diethylzinc to arylaldehydes
Nakano,Kumagai,Kabuto,Matsuzaki,Hongo
, p. 1233 - 1236 (2007/10/02)
New chiral ligands, 2-azanorbornylmethanols, were prepared and catalyzed the addition of diethylzinc to arylaldehydes to furnish secondary alcohols in up to 92% ee.
New Solid-Phase Catalysts for Asymmetric Synthesis: Cross-Linked Polymers Containing a Chiral Schiff Base-Zinc Complex
Itsuno, Shinichi,Sakurai, Yoshiki,Ito, Koichi,Maruyama, Toshihiro,Nakahama, Seiichi,Frechet, J. M. J.
, p. 304 - 310 (2007/10/02)
A cross-linked polystyrene resin containing chiral primary amino alcohol moieties bound through the ether linkage to some of its p-methylene-substituted aromatic rings is a useful regenerable chiral auxiliary in the enantioselective catalytic alkylation o
