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An air-stable, storable chiral zirconium catalyst for asymmetric aldol reactions
Shu Kobayashi1, Susumu Saito, Masaharu Ueno
1Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Chemical Communications (Cambridge, England)
|August 26, 2003
Abstract:
Asymmetric aldol reactions of ketene silyl acetals with aldehydes using an air-stable, storable chiral zirconium catalyst, which could be stored for at least 13 weeks at room temperature, proceeded smoothly to afford the desired adducts in high yields with high selectivity.