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Novel Sequential Process from N-Methoxyamides and Vinyl Grignard Reagents:  New Synthesis of β-Aminoketones

Arthur Gomtsyan*, Robert J. Koenig and Chih-Hung Lee

*Abbott Laboratories, Neurological and Urological Diseases Research, Abbott Park, Illinois 60064

A. Gomtsyan, R. J. Koenig, C.-H. Lee, J. Org. Chem., 2001, 66, 3613-3616.

DOI: 10.1021/jo0057497


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Abstract

The use of readily available and stable Weinreb amides enables a mild and efficient sequential synthesis of β-aminoketones or their derivatives ( e.g., pyrazolines). The reaction proceeds in good to excellent yields for a variety of amides, vinyl Grignard reagents and N-nucleophiles.

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Direct Synthesis of β-Aminoketones from Amides via Novel Sequential Nucleophilic Substitution/Michael Reaction

A. Gomtsyan, Org. Lett., 2000, 2, 11-13.


Key Words

Acylation, Amination, Weinreb Ketone Synthesis


ID: J42-Y2001