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Mechanism and Stereoselectivity

The stereoselectivity of the Wittig reaction is directly linked to this mechanism. In particular, the reaction of a carbonyl compound with an ylide produces both the [Pg.2]


Halpern J 1982 Mechanism and stereoselectivity of asymmetric hydrogenation Soienoe 217 401-7... [Pg.2713]

The same conversion is successfully catalyzed by using in-situ generated complexes of Ti(OPr )4 and tridentate Schiff bases (Stmcture 54), which are derived from substituted salicylaldehydes with chiral aminoalcohols [85]. Another similar chiral reagent is derived from reaction of titanium tetraisopropoxide and the Schiff base of 3,5-di-tert-butylsalicylaldehyde and (5)-valinol. The mechanism and stereoselectivity of these chiral Lewis acids are discussed by Corey and co-workers. Other chiral Ti Schiff base complexes have been employed in asymmetric TMSCN addition to benzaldehyde [85]. [Pg.486]

Houk, K. N. Ab initio and empirical computations of mechanism and stereoselectivity. Pure Appl. Chem. 1989, 61,643-650. [Pg.576]

Mechanisms and stereoselective syntheses of dihydropyrrolones from iron-substituted a,/f-unsaturated imines and organolithium and Grignard reagents 00EJO3961. [Pg.36]

Biihl, M. Terstegen. F. Loffler. F. Meynhardt, B. Kierse. S. Muller, M. Nather. C. Liining, l .Concave reagents. 34 On the mechanism and stereoselectivity of the cop-per(I) catalyzed cyclopropanation of oiefins. A combined experimental and density-functional study. Eur. J. Org. Chem. 2001, 2151-2160. [Pg.318]

In the AH, not only peri- ((3-1-2) versus (2-1-2) mechanism) and stereoselectivity like in the DH have to be addressed, but furthermore the questions of chemo-... [Pg.155]

Gollnick, K. Schenck, G.O. Mechanisms and stereoselectivity of phototsensitized oxygen transfer reaction. Pure Appl. Chem. 1964, 9, 507-525. [Pg.354]

Schenk GO (1964) Mechanism and stereoselectivity of oxygen transfer reactions. Pure Appl Chem 9 507-526... [Pg.125]

Wang, Y Guo, X. Tang, M. Wei, D. Theoretical Investigations toward the Asymmetric Insertion Reaction of Diazoester with Aldehyde Catalyzed by N-Protonated Chiral Oxazaborolidine Mechanisms and Stereoselectivity. /. Phys. Chem. A 2015,119,8422-8431. [Pg.223]

Scheme 4.13 Mechanism and stereoselectivity of an aldol reaction catalyzed by borate complex VIII... Scheme 4.13 Mechanism and stereoselectivity of an aldol reaction catalyzed by borate complex VIII...
Lind MES, Himo F (2014) Theoretical study of reaction mechanism and stereoselectivity of arylmalonate decarboxylase. Acs Catal 4(11) 4153 160... [Pg.409]


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Stereoselectivity and

Stereoselectivity mechanisms

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