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Facile preparation of allylzinc species from allylboronates and zinc amide via a boron-to-zinc exchange process and their reactions with carbonyl compounds, imines and hydrazones
Department of Chemistry, School of Science, The University of Tokyo, Bunkyo-ku, Japan
E-mail: shu_kobayashi@chem.s.u-tokyo.ac.jp
; Fax: +81-3-5684-0634
; Tel: +81-3-5841-4790
Chem. Commun., 2012,48, 10319-10321
DOI:
10.1039/C2CC34340A
Received
18 Jun 2012,
Accepted
31 Aug 2012
First published online
03 Sep 2012
Facile formation of allylzinc species from allylboronate and zinc amide was discovered. The boron-to-zinc exchange process occurred smoothly to afford the corresponding allylzinc amides, which were successfully employed in catalytic allylation reactions with electrophiles. Asymmetric catalysis using a chiral zinc amide is also reported.