Synthesis 2016; 48(24): 4525-4532
DOI: 10.1055/s-0036-1588304
paper
© Georg Thieme Verlag Stuttgart · New York

A New Powerful Approach to Multi-Substituted 3(2H)-Furanones via Brønsted Acid-Catalyzed Reactions of 4-Diazodihydrofuran-3-ones

Jury J. Medvedev
Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, Petrodvorets, St. Petersburg 198504, Russian Federation   Email: vnikola@VN6646.spb.edu
,
Dmitrii V. Semenok
Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, Petrodvorets, St. Petersburg 198504, Russian Federation   Email: vnikola@VN6646.spb.edu
,
Xenia V. Azarova
Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, Petrodvorets, St. Petersburg 198504, Russian Federation   Email: vnikola@VN6646.spb.edu
,
Liudmila L. Rodina
Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, Petrodvorets, St. Petersburg 198504, Russian Federation   Email: vnikola@VN6646.spb.edu
,
Valerij A. Nikolaev*
Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, Petrodvorets, St. Petersburg 198504, Russian Federation   Email: vnikola@VN6646.spb.edu
› Author Affiliations
Further Information

Publication History

Received: 03 July 2016

Accepted after revision: 02 August 2016

Publication Date:
14 September 2016 (online)


Abstract

The interaction of 5,5-dialkyl(diaryl)-substituted 4-diazo-3(2H)furanones with Brønsted acids (TFA, TsOH, etc.) causes elimination of nitrogen accompanied by 1,2-nucleophilic rearrangement, giving rise to exclusive formation of 4,5-dialkyl(diaryl)-substituted 3(2Н)-furanones, ring-fused 3(2H)-furanones, and phenanthro[9,10-b]furan-3(2H)-ones in yields of up to 99%. The reaction is a new highly efficient way for the synthesis of multisubstituted 3(2Н)furanones.

Supporting Information