33739-88-7Relevant academic research and scientific papers
Asymmetric epoxidation of unfunctionalized alkenes with ammonium and phosphonium monopersulfates catalyzed by chiral Mn(III)-salen complexes
Pietik?inen, Pekka
, p. 417 - 424 (2000)
Simple cis-disubstituted and trisubstituted alkenes were enantioselectively epoxidized in mild conditions using various Mn(III)-salen complexes as catalysts and quaternary ammonium and phosphonium monopersulfates (Bu4NHSO5, Ph4
Highly enantioselective biphasic iminium-catalyzed epoxidation of alkenes. on the importance of the counterion and of N(sp2)-C(sp3) Rotamers
Novikov, Roman,Bernardinelli, Gerald,Lacour, Jerome
supporting information; experimental part, p. 596 - 606 (2009/12/01)
Diastereomeric biaryliminium cations made of an (Ra)-5,5′,6,6′, 7,7′,8,8′-octahydrobinaphthyl core and exocyclic appendages derived from (S)or (R)-3,3-dimethylbutan-2-amine are effective asymmetric epoxidation catalysts for unfunctionalized alkenes. Herei
Structural optimization of enantiopure 2-cyclialkylamino-2-aryl-1,1- diphenylethanols as catalytic ligands for enantioselective additions to aldehydes
Rodriguez-Escrich, Sergi,Reddy, Katamreddy Subba,Jimeno, Ciril,Colet, Gisela,Rodriguez-Escrich, Carles,Sola, Lluis,Vidal-Ferran, Anton,Pericas, Miquel A.
, p. 5340 - 5353 (2008/12/20)
(Chemical Equation Presented) The structural optimization of a family of modular, enantiopure β-amino alcohol ligands with a common 2-amino-2-aryl-1,1-diphenylethanol skeleton, whose stereogenicity was introduced through the Jacobsen epoxidation of 1,1-diphenyl-2-arylethylenes, has led to the identification of a small set of optimal catalysts with enhanced activity and enantioselectivity in the addition of alkylzinc and arylzinc reagents to aldehydes. Criteria for the discrimination between apparently analogous, highly enantioselective ligands are proposed.
Highly Enantioselective, Catalytic Epoxidation of Trisubstituted Olefins
Brandes, Bridget D.,Jacobsen, Eric N.
, p. 4378 - 4380 (2007/10/02)
Chiral (salen)Mn(III) complexes have been found to be highly selective catalysts for the asymmetric epoxidation of several cyclic and acyclic trisubstituted olefins.These results are interpreted with a transition-state model for epoxidation involving a sk
