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1.
Dynamic one-pot three-component catalytic asymmetric transformation by combination of hydrogen-bond-donating and amine catalysts.
Lin, Shuangzheng; Deiana, Luca; Zhao, Gui-Ling; Sun, Junliang; Córdova, Armando.
Angew Chem Int Ed Engl ; 50(33): 7624-30, 2011 Aug 08.
Article in English | MEDLINE | ID: mdl-21710513

Subject(s)
Amines/chemistry , Proline/chemical synthesis , Catalysis , Crystallography, X-Ray , Cyclization , Hydrogen Bonding , Models, Molecular , Molecular Structure , Proline/analogs & derivatives , Proline/chemistry , Stereoisomerism
2.
Dynamic kinetic asymmetric domino oxa-Michael/carbocyclization by combination of transition-metal and amine catalysis: catalytic enantioselective synthesis of dihydrofurans.
Lin, Shuangzheng; Zhao, Gui-Ling; Deiana, Luca; Sun, Junliang; Zhang, Qiong; Leijonmarck, Hans; Córdova, Armando.
Chemistry ; 16(47): 13930-4, 2010 Dec 17.
Article in English | MEDLINE | ID: mdl-21082625

Subject(s)
Amines/chemistry , Furans/chemical synthesis , Transition Elements/chemistry , Catalysis , Crystallography, X-Ray , Cyclization , Furans/chemistry , Kinetics , Molecular Dynamics Simulation , Molecular Structure , Palladium/chemistry , Stereoisomerism
3.
Dynamic kinetic asymmetric transformation (DYKAT) by combined amine- and transition-metal-catalyzed enantioselective cycloisomerization.
Zhao, Gui-Ling; Ullah, Farman; Deiana, Luca; Lin, Shuangzheng; Zhang, Qiong; Sun, Junliang; Ibrahem, Ismail; Dziedzic, Pawel; Córdova, Armando.
Chemistry ; 16(5): 1585-91, 2010 Feb 01.
Article in English | MEDLINE | ID: mdl-20039352

ABSTRACT

The first examples of one-pot highly chemo- and enantioselective dynamic kinetic asymmetric transformations (DYKATs) involving alpha,beta-unsaturated aldehydes and propargylated carbon acids are presented. These DYKATs, which proceed by a combination of catalytic iminium activation, enamine activation, and Pd(0)-catalyzed enyne cycloisomerization, give access to functionalized cyclopentenes with up to 99 % ee and can be used for the generation of all-carbon quaternary stereocenters.


Subject(s)
Amines/chemistry , Cyclopentanes/chemical synthesis , Palladium/chemistry , Transition Elements/chemical synthesis , Catalysis , Cyclization , Cyclopentanes/chemistry , Kinetics , Molecular Dynamics Simulation , Molecular Structure , Stereoisomerism , Transition Elements/chemistry
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