Tetrahedron Letters p. 3597 - 3600 (1999)
Update date:2022-08-03
Topics:
Satake, Akiharu
Kadohama, Hitomi
Koshino, Hiroyuki
Nakata, Tadashi
The first asymmetric cyclopropanation of ketene silyl acetal with allylic acetate was achieved. New chiral oxazolidinylpyrazole ligands and their η3-allylpalladium complexes were synthesized. Reaction of cinnamyl acetate with ketene silyl acetal of ethyl isobutylate in the presence of a palladium complex gave a phenyl cyclopropane derivative in 20~ 54%ee.
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