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Studies of polyazapentalenes. I. The preparation of 6‐dehydroindazolo[1,2‐ a ]benzotriazole
Author(s) -
Tsuge Otohiko,
Samura Hideo
Publication year - 1971
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.5570080503
Subject(s) - chemistry , indazole , benzotriazole , azobenzene , medicinal chemistry , photodissociation , organic chemistry , molecule
The photolysis of 1‐( o ‐azidophenyl)‐1 H ‐indazole (IV) has been found to give a mix ture of 6‐dehydroindazolo[1,2‐ a ]benzolriazole (VI) and 2,2′‐di(1‐indazolyl)azobenzene (VII). On the other hand, 1‐( o ‐nilrophenyl)‐1 H ‐indazole (1) was reduced with triethyl phosphite, affording VI and dibenzo[ a,i ] indazolo[1,2,′3‐ cd ] indazolo[3,2,1‐ fg ]‐3,3a,5a,6,8a,8b‐hexaaza‐ as ‐indacene (XIa).
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