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Photoreaction of pyrido[2,3‐ c ]furoxan
Author(s) -
Miyazawa Tomoyuki,
Takabatake Tohru,
Hasegawa Minoru
Publication year - 1995
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570320202
Subject(s) - chemistry , furoxan , acetonitrile , mercury (programming language) , morpholine , tetrazine , pyridine , medicinal chemistry , nitro , irradiation , mercury vapor lamp , photochemistry , nitric oxide , organic chemistry , alkyl , physics , optoelectronics , computer science , nuclear physics , programming language
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‐dimorpholino‐2‐nitropyridine 9 was produced. The results of photoreaction study indicated the only photo‐product to be compound 6 . The main difference between these two reactions may be considered due to the behavior of nitrogen in the pyridine ring.