S 73 Sosnovskikh, V. Ya. Rearrangement of 3-aminoisoxazolo[4,5-c]coumarins into 2-aminooxazolo[4,5-c]coumarins mediated by carboxylic acid anhydrides [Electronic resource] / V. Ya. Sosnovskikh, V. S. Moshkin, M. I. Kodess // Mendeleev Communications. - 2010. - Vol. 20, № 4. - P209-211 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Reactions of 3-amino-4H-chromeno[3,4-d]isoxazol-4-ones with acetic and trifluoroacetic anhydrides gave the corresponding acetyl derivatives, which were rearranged into 2-amino-4H-chromeno[3,4-d][1,3]oxazol-4-ones by heating in DMSO solution \\\\Expert2\\nbo\\Mendeleev Communications\\2010, v.20, p.209.pdf |