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Synthesis of 3,9,15,19,21,23‐Hexaazakekulene
Author(s) -
Tatibouët Arnaud,
Hancock Richard,
Demeunynck Martine,
Lhomme Jean
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199711901
Subject(s) - computer science
Blue fluorescence is exhibited by the hexaazakekulene 1 , the first fully aromatic heteroanalogue of kekulene. It was synthesized in four steps from formaldehyde and proflavine (3,6‐diaminoacridine). Although 1 is insoluble in organic solvents, it is slightly soluble in strong acids such as methanesulfonic or trifluoroacetic acid—probably due to protonation.