Title of article
In-plane homoconjugation/homoaromaticity in preoriented 4N-anions—‘scope and limitations’
Author/Authors
Jens Geier، نويسنده , , Kai Exner، نويسنده , , Markus V?gtle، نويسنده , , Markus Kegel، نويسنده , , Fushun Yang، نويسنده , , Dieter Hunkler، نويسنده , , Oliver Cullmann، نويسنده , , Horst Prinzbach، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2002
Pages
9
From page
1137
To page
1145
Abstract
By oxidation of (presumably) bislithiated, unusually proximate, syn-periplanar bishydrazines an alternative access to σ-bishomoaromatic 4N/6e dianions is realized. Formal N-alkylation/arylation of these 4N/6e dianions leads to novel, cyclically delocalized 4N/6e monoanions. Experimental realization is achieved by addition of metal organyls to proximate bisdiazenes as well as by deprotonation of the respective diazene/alkyl(aryl) hydrazines. The nature of the 4N/6e bonding motif is investigated by UV/Vis and NMR spectroscopy as well as by DFT calculations.
Keywords
?-homoaromaticity , preorientation , 4N/6e anions
Journal title
Tetrahedron
Serial Year
2002
Journal title
Tetrahedron
Record number
1082785
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