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note
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For the structures of the commercially available modified cinchona alkaloids, see the Supporting Information.
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note
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As described in the Supporting Information, a wide variety of α,α-dialkoxy ketones (6a-c, 7a-m) can be prepared from commercially available reagents such as α,α-dialkoxyacetonitrile, arylglyoxal monohydrate, and 1,3-dihydroxyacetone dimer in one or two steps.
-
-
-
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46
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0042180843
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note
-
Simple ketones afford generally modest enantioselectivity (10-76% ee).
-
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47
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0041680151
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note
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For experimental details, see the Supporting Information.
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