Polyfunctionalization of vicinal carbon centers and synthesis of unsymmetric 1,2,3,4-tetracarbonyl compounds

Luca Angelis, Chao Pei, Ana L. Narro, Daniel Wherritt, Rene M. Koenigs () and Michael P. Doyle ()
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Luca Angelis: The University of Texas at San Antonio
Chao Pei: RWTH Aachen University, Institute of Organic Chemistry
Ana L. Narro: The University of Texas at San Antonio
Daniel Wherritt: The University of Texas at San Antonio
Rene M. Koenigs: RWTH Aachen University, Institute of Organic Chemistry
Michael P. Doyle: The University of Texas at San Antonio

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract The synthesis and characterization of organic compounds with unusual atom or functional group connectivity is one of the main driving forces in the discovery of new synthetic methods that has raised the interest of chemists for many years. Polycarbonyl compounds are such compounds wherein multiple carbonyl groups are directly juxtaposed and influence each other’s chemical reactivity. While 1,2-dicarbonyl or 1,2,3-tricarbonyl compounds are well-known in organic chemistry, the 1,2,3,4-tetracarbonyl motif remains barely explored. Herein, we report on the synthesis of such 1,2,3,4-tetracarbonyl compounds employing a synthetic strategy that involves C-nitrosation of enoldiazoacetates, while the diazo functional group remains untouched. This strategy not only leverages the synthesis of 1,2,3,4-tetracarbonyl compounds to an unprecedented level, it also accomplishes the synthesis of 1,2,3,4-tetracarbonyl compounds, wherein each carbonyl group is orthogonally masked. Combined experimental and theoretical studies provide an understanding of the reaction mechanism and rationalize the formation of such 1,2,3,4-tetracarbonyl compounds.

Date: 2023
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DOI: 10.1038/s41467-023-36757-w

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