Acid-base catalysis using chiral palladium complexes

Author:

Sodeoka Mikiko1,Hamashima Yoshitaka1

Affiliation:

1. 1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Miyagi 980-8577, Japan

Abstract

Chiral Pd aqua and µ-hydroxo complexes were found to act as mild Brønsted acids and bases, and chiral Pd enolates were generated from these complexes even under acidic conditions. Highly enantioselective Michael addition, Mannich-type reaction, fluorination, and conjugate addition of amines have been developed based on the acid-base character of these Pd complexes.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry

Reference14 articles.

1. More recently reported a related reaction;Marigo;Chem Eur J Am Chem Soc,2003

2. For the use of α β - unsaturated aldehydes as Michael acceptors see;Brunner;Mol Catal Tetrahedron Angew Chem Chem Eur J,1999

3. For general reviews on catalytic asymmetric Mannich - type reactions In Comprehensive Asymmetric Catalysis Supplement;Kobayashi;Chem Res,2004

4. Asymmetric Fluoroorganic Chemistry : Synthesis Application and Future Direction American Chemical Society Enantiocontrolled Synthesis of Fluoro - Organic Compounds : Stereochemical Challenge and Biomedicinal Targets New York;Ramachandran;ACS Symposium Series,2000

5. and refs therein;Hewawasam;Med Chem Lett,2002

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