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Polycondensed nitrogen heterocycles. Part 19 . Pyrrolo[1,2‐ f ]phenanthridines by pschorr‐type cyclization brought about by hypophosphorous acid
Author(s) -
Dattolo Gaetano,
Cirrincione Girolamo,
Almerico Anna Maria,
Aiello Enrico,
D'Asdia Isabella
Publication year - 1986
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.5570230522
Subject(s) - chemistry , acetic acid , organic chemistry , nitrogen , medicinal chemistry
Pyrrolo[1,2‐ f ]phenanthridines were prepared in good yields by the diazotization in acetic acid of the amines la,b and subsequent treatment with hypophosphorous acid. The necessity for hypophosphorous acid in the reaction was demonstrated.