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43
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2642666993
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Configurations of all the starting materials and products of the coupling reactions were proven by NMR including NOE and NOESY experiments
-
Configurations of all the starting materials and products of the coupling reactions were proven by NMR including NOE and NOESY experiments.
-
-
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44
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2642594604
-
-
Minor enantiomer not detected by GC analysis
-
Minor enantiomer not detected by GC analysis.
-
-
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48
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1542694981
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53
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2642694213
-
-
A 25 m Chrompack Chirasil-L-Val column was used for determinations of enantiomeric excesses
-
A 25 m Chrompack Chirasil-L-Val column was used for determinations of enantiomeric excesses.
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54
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0028246815
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-
-
2642628240
-
-
note
-
As the distal double bond of 2 was reduced, the enantiomeric excess of the monoreduced material (2) decreased showing moderate reverse substrate selectivity for the overreduction reaction (i.e., the major enantiomer of 2 was preferentially reduced causing the % ee of the monoreduced material to decrease). When the overreduction reaction was allowed to go to completion, the % ee of the resulting fully reduced material was identical with the initial % ee of 2.
-
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60
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0013798339
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0028596355
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68
-
-
2642660982
-
-
note
-
3, hexanes). (Equation Presented)
-
-
-
-
69
-
-
2642693226
-
-
note
-
f = 2.15 kcal/mol for the two diastereomers.
-
-
-
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71
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33751499016
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