Chiral donor–acceptor azetines as powerful reactants for synthesis of amino acid derivatives

Kostiantyn O. Marichev, Kuiyong Dong, Lynée A. Massey, Yongming Deng, Luca Angelis, Kan Wang, Hadi Arman and Michael P. Doyle ()
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Kostiantyn O. Marichev: The University of Texas at San Antonio
Kuiyong Dong: The University of Texas at San Antonio
Lynée A. Massey: The University of Texas at San Antonio
Yongming Deng: The University of Texas at San Antonio
Luca Angelis: The University of Texas at San Antonio
Kan Wang: The University of Texas at San Antonio
Hadi Arman: The University of Texas at San Antonio
Michael P. Doyle: The University of Texas at San Antonio

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract Coupling reactions of amines and alcohols are of central importance for applications in chemistry and biology. These transformations typically involve the use of a reagent, activated as an electrophile, onto which nucleophile coupling results in the formation of a carbon-nitrogen or a carbon–oxygen bond. Several promising reagents and procedures have been developed to achieve these bond forming processes in high yields with excellent stereocontrol, but few offer direct coupling without the intervention of a catalyst. Herein, we report the synthesis of chiral donor–acceptor azetines by highly enantioselective [3 + 1]-cycloaddition of enoldiazoacetates with aza-ylides and their selective coupling with nitrogen and oxygen nucleophiles via 3-azetidinones to form amino acid derivatives, including those of peptides and natural products. The overall process is general for a broad spectrum of nucleophiles, has a high degree of electronic and steric selectivity, and retains the enantiopurity of the original azetine.

Date: 2019
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DOI: 10.1038/s41467-019-13326-8

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