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Air-stable, storable, and highly selective chiral Lewis acid catalyst
Masaharu Ueno1, Haruro Ishitani, Shū Kobayashi
1Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Organic Letters
|September 27, 2002
Abstract:
An air-stable, storable, and highly selective chiral Lewis acid catalyst for asymmetric Mannich-type reactions has been developed. The catalyst can be stored for more than three months in air at room temperature without loss of activity. Moreover, it has also been demonstrated that the catalyst can be recovered and reused. [structure: see text]