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note
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A survey of catalysts 2 bearing various oxazoline substituents was performed (i-Pr, 89% ee; Ph, 57% ee; Bn, 78% ee.
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15
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85034138149
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note
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Relative and absolute stereochemical information was obtained by conversion of representative products to crystalline derivatives that were analyzed by X-ray crystallography.
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85034122825
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note
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4OH-brine solution (3:1) was added at low temperature. A conventional product isolation was followed by flash chromatography purification.
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We have established that transmetalation of enolsilanes by 2 is not operative.
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