First example of the formation of bipolar spiro σ-complexes from 6-bromo-5,7-dinitrobenzo[e]-1,2,3,4-tetrazine 1,3-di-N-oxide

被引：0
|
作者：
V. A. Voronina
A. E. Frumkin
S. V. Kurbatov
A. M. Churakov
O. Yu. Smirnov
L. P. Olekhnovich
机构：
[1] Rostov State University,Russian Academy of Sciences
[2] N. D. Zelinsky Institute of Organic Chemistry,undefined
来源：
Russian Chemical Bulletin | 2002年 / 51卷
关键词：
benzo[; ]-1,2,3,4-tetrazine 1,3-di-; -oxides; tropolone; bipolar spiro complexes; enantiotopomerization;
D O I：
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摘要：
The reactions of 3,5,7-trimethyltropolone and 2-(N-benzylamino)tropone with 6-bromo-5,7-dinitrobenzo[e]-1,2,3,4-tetrazine 1,3-di-N-oxide afforded novel bipolar spiro σ-complexes. The kinetic and activation parameters of the R,S-enantiotopomerization of a chiral spiro σ-complex of 2-(N-benzylamino)tropone were determined using dynamic 1H NMR spectroscopy.
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页码：668 / 670
页数：2
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