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R) or (S)-SITCP is commercially available from Sigma-Aldrich and Strem.
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84898972210
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The products 3a and 3a' were obtained in 88% total yield (3a:3a'=14.3:1) with 84% ee for 3a when using 10mol% catalyst loading.
-
The products 3a and 3a' were obtained in 88% total yield (3a:3a'=14.3:1) with 84% ee for 3a when using 10mol% catalyst loading.
-
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59
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84899021795
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An addition of Brønsted acid such as 2-naphthol (20mol%) led to a drastic drop of reaction rate and stereoselectivity; after 24h, 50% total yield of products 3a and 3a' (3a:3a'=1:1.2) were obtained in 19% ee for 3a and 11% ee for 3a', respectively.
-
An addition of Brønsted acid such as 2-naphthol (20mol%) led to a drastic drop of reaction rate and stereoselectivity; after 24h, 50% total yield of products 3a and 3a' (3a:3a'=1:1.2) were obtained in 19% ee for 3a and 11% ee for 3a', respectively.
-
-
-
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60
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84898941878
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CCDC964567 ((R)-3c) contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre via.
-
CCDC964567 ((R)-3c) contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
-
-
-
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61
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84898996858
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The absolute configuration of major products 3a-b and 3d-k were tentatively assigned to be the structures as shown in Scheme2 by comparison with an optical rotation of (-)-3c (91% ee, R)), see the Supporting Information.
-
The absolute configuration of major products 3a-b and 3d-k were tentatively assigned to be the structures as shown in Scheme2 by comparison with an optical rotation of (-)-3c (91% ee, (R)), see the Supporting Information.
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