49. Modified cinchona alkaloids. Part VI. Niquidinedoi:10.1039/jr9390000240Gibbs, Egbert M.Henry, Thomas A.Journal of the Chemical Society (Resumed)
19. Modified cinchona alkaloids. Part VIII. Niquinedoi:10.1039/jr9410000077SolomonWilliamJournal of the Chemical Society
These results also extend the scope of chiral Lewis base catalysis of modified cinchona alkaloid to a new class of important reaction.; In summary, modified cinchona alkaloids have been developed as highly effective and broadly useful organic catalysts for several important asymmetric nucleophile-...
Asymmetric or- ganic catalysis with modified cinchona alkaloids. Acc Chem Res 2004;8:621-631.Tian S-K, Chen Y, Hang J, Tang L, McDaid P, Deng L. Asymmetric or- ganic catalysis with modified cinchona alkaloids. Acc Chem Res 2004;37:621-631....
Dynamic kinetic resolution via dual-function catalysis of modified cinchona alkaloids: asymmetric synthesis of a-hydroxy carboxylic acids. J Am Chem Soc 2002;124:2870 -2871.Tang L, Deng L. Dynamic kinetic resolution via dual-function catalysis of modified cinchona alkaloids: Asymmetric synthesis of ...
Zhang;SJ;Cui;HL;Jiang;K;Li;R;Ding;ZY;Chen;YC.Enantioselec- tive allylic amination of Morita-Baylis-Hillman carbonates catalysed by modified cinchona alkaloids.European Journal of Organic Chemistry.2009Zhang SJ, Cui HL, Jiang K, Li R, Ding ZY, Chen YC. Enantioselective allylic amination of ...
Enantioselective hydrogenation of α-ketoamides over Pt/Al2O3 modified by cinchona alkaloids [J]. Tetrahedron: Asymmetry, 1997, 8 (13): 2133-2140.Wang, G.Z.; Mallat, T.; Baiker, A. Enantioselective hydrogenation of -ketoamides over Pt/Al2O3 modified by cinchona alkaloids. Tetrahedron: ...
A detailed investigation of supported platinum catalysts modified with cinchona alkaloids for the enantioselective hydrogenation of pyruvic acid esters has been carried out. It was confirmed that pretreatment of the catalysts has a strong effect on their performance, which is dependent both upon the ...
A Formal Catalytic Asymmetric Synthesis of (+)-Biotin with Modified Cinchona AlkaloidsChoi, C.Tian, S.-K.Deng, L.SYNTHESIS -STUTTGART-
Of particular interest was Orito's catalytic system, platinum catalysts modified with cinchona alkaloids for the hydrogenation of activated ketones. Described are the development of the optimal platinum catalyst and modifier and the expansion of the scope of the catalyst. Kinetic studies aimed at ...