Dinitrogen Trioxide-Mediated Domino Process for the Regioselective Construction of 4-Nitrofuroxans from Acrylic Acids
作者:Leonid L. Fershtat、Marina I. Struchkova、Alexander S. Goloveshkin、Ivan S. Bushmarinov、Nina N. Makhova
DOI:10.1002/hc.21166
日期:2014.7
4-Nitrofuroxans (4-nitro-1,2,5-oxadiazole 2-oxides) were prepared by a dinitrogentrioxide–mediateddomino reaction of acrylicacids under the action of NaNO2 excess in AcOH at room temperature. The reaction proceeds completely regioselectively and presents a new, simple, general, and safe method for the preparation of both 3-aryl- and 3-alkyl-4-nitrofuroxans available with difficulty before. A mechanism