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Benzo[ h ]cinnolin
Author(s) -
Bluhm Thorsten
Publication year - 1981
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.5570180135
Subject(s) - chemistry , ring (chemistry) , luminescence , diazine , stereochemistry , medicinal chemistry , organic chemistry , physics , optoelectronics
The synthesis of benzo[ h ]cinnolin ( 3 ) is reported. Its spectroscopic properties (uv, luminescence, pmr, ms) are similar to the other diazaphenanthrenes containing a diazine ring. The lowering of the basicity of 3 compared with a monoazaphenanthrene like other diaza‐aromatic compounds appears to be due to an electrostatic field effect and not to an inductive effect.