Reactions of α-pentafluorophenylpyrylium salts with hydroxylamine
作者:I. Yu. Kargapolova、K. S. Shmuilovich、N. A. Orlova、M. M. Shakirov、T. V. Rybalova、V. V. Shelkovnikov
DOI:10.1007/s11172-008-0064-1
日期:2008.2
The reactions of α-pentafluorophenylpyrylium salts with hydroxylamine in ethanol afford isoxazoline derivatives and/or pyridine N-oxides depending on the steric characteristics of the substituent in the second α position. The structure of 2-hydroxy-2-pentafluorophenyl-4-phenyl-2,3,5,6,7,8-hexahydroquinoline 1-oxide, which was synthesized by the reaction of 2-pentafluorophenyl-4-phenyl-5,6,7,8-tetrahydrobenzopyrylium
α-五氟苯基吡啶鎓盐与羟胺在乙醇中的反应产生异恶唑啉衍生物和/或吡啶 N-氧化物,这取决于第二个 α 位取代基的空间特征。2-羟基-2-五氟苯基-4-苯基-2,3,5,6,7,8-六氢喹啉1-氧化物的结构,由2-五氟苯基-4-苯基-5,6反应合成,7,8-四氢苯并吡喃高氯酸盐与 NH2OH,通过 X 射线衍射确定。
Reactions of α-perfluorophenylpyrylium perchlorates with hydrazine hydrate
作者:I. Yu. Kargapolova、K. S. Shmuilovich、I. V. Beregovaya、N. A. Orlova
DOI:10.1007/s11172-010-0256-3
日期:2010.7
Reactions of α-perfluorophenylpyrylium salts with hydrazinehydrate in ethanol afforded derivatives of 1,2-diazepine, dihydro-1H-pyrazole, and/or 1-aminopyridinium salts, depending on the steric characteristics of the substituent in the second α-position. 1-Amino-2-methyl-6-perfluorophenyl-4-phenylpyridinium perchlorate was used to obtain various pyridocyanines.