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Synthesemethoden In der Zuschrift auf S. 12126 ff. zeigen A. H. Hoveyda, H. Ito et al. die erste katalytische diastereo‐ und enantioselektive Synthese von Allylboronaten mit Z‐trisubstituiertem Alkenylfluorid.
The first catalytic method for diastereo‐ and enantioselective synthesis of allylic boronates bearing a Z‐trisubstituted alkenyl fluoride is disclosed. Boryl substitution is performed with either a Z‐ or E‐allyldifluoride and is catalyzed by bisphosphine/Cu complexes, affording products in up to 99 % yield with >98:2 Z/E selectivity and 99:1 enantiomeric ratio. A variety of subsequent modifications...
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