DFT study of 1,3-dipolar cycloadditions of C,N-disubstituted aldonitrones to chalcones evidenced by NMR and X-ray analysis

被引:20
作者
Acharjee, Nivedita [1 ]
Banerji, Avijit [1 ]
Prange, Thierry [2 ]
机构
[1] Univ Calcutta, Ctr Adv Studies Nat Prod Including Organ Synth, Dept Chem, Kolkata 700009, W Bengal, India
[2] Univ Paris 05, Lab Cristallog & RMN Biol, UMR 8015, CNRS, F-75006 Paris, France
来源
MONATSHEFTE FUR CHEMIE | 2010年 / 141卷 / 11期
关键词
Energy barrier; Electrophilicity index; NMR spectroscopy; X-ray structure determination; METHYL ACRYLATE; QUANTITATIVE CHARACTERIZATION; DIELS-ALDER; NITRONE; REACTIVITY; ENERGY; C-(METHOXYCARBONYL)-N-METHYL; ACID;
D O I
10.1007/s00706-010-0393-2
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A DFT/B3LYP/6-31G* study was carried out to predict the regio- and stereoselectivities of 1,3-dipolar cycloadditions of C,N-disubstituted aldonitrones to chalcones in terms of FMO theory, DFT-based reactivity indices, and activation energy calculations. The structures of the resultant 2,3,4,5-tetrasubstituted isoxazolidines were determined by means of NMR spectroscopy and X-ray analysis.
引用
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页码:1213 / 1221
页数:9
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