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[14]Annulenequinones with Anthraquinone Periphery: “Isopyrenequinone”
Author(s) -
Vogel Emanuel,
Schmalstieg Lutz,
Henk Peter,
Wilmes Oswald,
Lex Johann,
Gleiter Rolf,
Langer Michael
Publication year - 1991
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.199106811
Subject(s) - anthraquinone , derivative (finance) , resonance (particle physics) , molecule , pigment , chemistry , copper , photochemistry , stereochemistry , organic chemistry , physics , atomic physics , financial economics , economics
Anthraquinone can cope with the insertion of a CC unit into the interior of the molecule! This is demonstrated by the synthesis of the copper‐colored pigment “isopyrenequinone” ( 1 ), which, according to spectral and structural data, is not a heptafulvalene derivative, but must be regarded as a resonance hybrid with tropylium mesomeric structures. Compound 1 can be reversibly converted into the nonplanar bridged [14]annulenequinone 2 .