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2,6‐Diaza‐ s ‐indacenes
Author(s) -
Closs Fritz,
Gompper Rudolf,
Nagel Ulrich,
Wagner HansUlrich
Publication year - 1987
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.198710371
Subject(s) - dication , planar , resonance (particle physics) , chemistry , dipole , crystallography , polymer chemistry , materials science , molecule , organic chemistry , physics , computer science , atomic physics , computer graphics (images)
A new approach to s‐indacene derivatives starts from pyromellitimide, which can be transformed into the dication 1 , from which, in turn, the 2,6‐diaza‐ s ‐indacene 2 can be prepared in addition to other products. Compound 2 is—with the exception of the ethyl groups—planar. The dipolar resonance structure 3 sheds light on the bonding in 2 .
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