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41849105215
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The η3-azaallyl zirconium hydrides undergo insertion reactions via the isomeric zirconaaziridines, as can be inferred from refs 1 and 9
-
3-azaallyl zirconium hydrides undergo insertion reactions via the isomeric zirconaaziridines, as can be inferred from refs 1 and 9.
-
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35
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0000760496
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For η1-1-azaallyl zirconium complexes see: a
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41849086447
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2 imine about the axis linking it to the Zr. We think such imine rotation unlikely with an early transition metal, where the complex is better described as a metallaaziridine.
-
2 imine about the axis linking it to the Zr. We think such "imine rotation" unlikely with an early transition metal, where the complex is better described as a metallaaziridine.
-
-
-
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49
-
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41849143955
-
-
1 isomerization (Paul C under Mechanism), accelerated by the steric demands of the Me and Ph substituents, affects enantiomer interconversion even for 7.
-
1 isomerization (Paul C under Mechanism), accelerated by the steric demands of the Me and Ph substituents, affects enantiomer interconversion even for 7.
-
-
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50
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0000234043
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41849145032
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At the beginning of such a reaction, with the enantiomers of 10 present in equal amounts, the product ratio (R,R,R, R,R,S) will equal kR/kS
-
S.
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54
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41849101219
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Ianni, J. Kintecus V3.8.
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41849109294
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S values for 2c (obtained by kinetic simulation) are reported as the standard deviation of each rate constant for two data sets.
-
S values for 2c (obtained by kinetic simulation) are reported as the standard deviation of each rate constant for two data sets.
-
-
-
-
56
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41849083591
-
-
We know, from ref 1, that kinetic resolution leaves zirconaaziridine enriched in the R enantiomer for 1a and 1d and assumes that the configuration is the same in the other cases.
-
We know, from ref 1, that kinetic resolution leaves zirconaaziridine enriched in the R enantiomer for 1a and 1d and assumes that the configuration is the same in the other cases.
-
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57
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0004182966
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Unpublished work, quoted in
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2 equilibria in the reference they cite (their ref 18).
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2 equilibria in the reference they cite (their ref 18).
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70
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20444487398
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For recent examples with Zr, see: a
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For recent examples with Zr, see: (a) Chirik, P. J.; Dalleska, N. F.; Henling, L. M.; Bercaw, J. E. Organometallics 2005, 24, 2789.
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