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Ligand 1 was prepared from L-Val following the procedure described in the literature.
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3/1 1:1 gave the product in 91% yield and 24% ee under otherwise identical conditions.
-
3/1 ) 1:1 gave the product in 91% yield and 24% ee under otherwise identical conditions.
-
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61
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77950213407
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The absolute configuration of 4aa and 4ac was determined by X-ray crystallographic analysis. See Supporting Information for details.
-
The absolute configuration of 4aa and 4ac was determined by X-ray crystallographic analysis. See Supporting Information for details.
-
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62
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The reaction using an acyclic α-cyanoketone or a β-substituted enone gave no desired products. Experimental details are summarized in Supporting Information.
-
The reaction using an acyclic α-cyanoketone or a β-substituted enone gave no desired products. Experimental details are summarized in Supporting Information.
-
-
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63
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77950275720
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The reaction with enone 3n using another RE/1 catalyst did not improve the enantioselectivity. The results are summarized in Supporting Information.
-
The reaction with enone 3n using another RE/1 catalyst did not improve the enantioselectivity. The results are summarized in Supporting Information.
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Relative configuration was determined after converting to the corresponding cyclic carbonate. See Supporting Information for details.
-
Relative configuration was determined after converting to the corresponding cyclic carbonate. See Supporting Information for details.
-
-
-
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