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research article
Catalytic Enantioselective Benzilic Ester Rearrangement
April 27, 2020
We report the first examples of catalytic enantioselective benzilic ester rearrangement reaction. In the presence of a catalytic amount of Cu(OTf)(2) and a chiral box ligand under mild conditions, reaction of 2,3-diketoesters with alcohols afforded structurally diverse alpha-aryl(alkyl) substituted-alpha-hydroxy malonates (tartronic esters) in good to excellent yields with high enantioselectivities. Preliminary mechanistic studies indicated that hemiketalization, rather than the dynamic kinetic resolution of hemiketal, was the enantiodetermining step under our reaction conditions.
Type
research article
Web of Science ID
WOS:000526818900046
Authors
Publication date
2020-04-27
Publisher
Published in
Volume
59
Issue
18
Start page
7261
End page
7265
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
May 1, 2020
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