1282969-67-8Relevant academic research and scientific papers
Base-induced transformations of ortho-nitrobenzylketones: Intramolecular displacement of nitro group versus nitro-nitrite rearrangement
Filimonov, Sergey I.,Chirkova, Zhanna V.,Abramov, Igor G.,Firgang, Sergey I.,Stashina, Galina A.,Strelenko, Yuri A.,Khakimov, Dmitriy V.,Pivina, Tatyana S.,Samet, Alexander V.,Suponitsky, Kyrill Yu.
, p. 5991 - 5997 (2012/09/11)
Reactions of 4-bromo-5-nitrophthalonitrile (BNPN) with enolates of alkyl 4-R-2,4-dioxobutanoates gave alkyl 3-acyl-5,6-dicyanobenzofuran-2-carboxylates, 4-(2-R-2-oxoethyl)-5-nitrophthalonitriles, or 3-acyl-1,2-benzoxazole-5,6- dicarbonitriles. With a base, 4-(2-R-2-oxoethyl)-5-nitrophthalonitriles either undergo nitro-nitrite rearrangement resulting in 3-acyl-1,2-benzoxazole-5,6- dicarbonitriles or yield 2-R-benzofuran-5,6-dicarbonitriles with a nitro group displacement.
