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Stereo- and site-selective methylallene-mediated carbonyl crotylation via ruthenium-JOSIPHOS-catalyzed hydrogen auto-transfer of primary alcohols 2a-2q hydrogen-auto transfer.a
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Yields of material isolated by silica gel chromatography. Enantioselectivities determined by HPLC analysis. Diastereoselectivities determined by 1H NMR analysis of crude reaction mixtures and refer to the major isomer vs all other isomers. See Supporting Information for further details.
