When pyrido[2,3-c]furoxan 4 was irradiated in acetonitrile containing a little water with a low pressure mercury lamp, 3-nitro-2-pyridone 5 was obtained. When compound 4 was irradiated in the presence of morpholine with a low pressure mercury lamp in an argon atmosphere, 6-morpholinopyridine 2,3-dioxime 6, 6-morpholinopyrido[2,3-c]furazan 7, 3-amino-6-morpholino-2-nitropyridine 8, and 3-amino-4,6-
用低压水银灯在含有少量水的乙腈中照射吡啶并[2,3- c ]呋喃喃4,得到3-硝基-2-吡啶酮5。当化合物4照射在吗啉的存在下在氩气氛中的低压水银灯,6-吗啉代-2,3-二肟6,6-吗啉代[2,3- c ^ ]呋咱7,3-氨基-6-产生吗啉代-2-硝基吡啶8和3-氨基-4,6-二吗啉代-2-硝基吡啶9。光反应研究的结果表明唯一的光产物是化合物6。由于吡啶环中氮的行为,可以考虑这两个反应之间的主要区别。
KOTOVSKAYA S. K.; MOKRUSHINA G. A.; POSTOVSKIJ I. YA.; POLYAKOVA M. V., XIMIYA GETEROTSIKL. SOEDIN., 1981, NO 5, 654-657
作者:KOTOVSKAYA S. K.、 MOKRUSHINA G. A.、 POSTOVSKIJ I. YA.、 POLYAKOVA M. V.