SYNTHESIS OF 1'-ARYL-3''-(1<i>H</i>-BENZOTRIAZOL-1-YL)-5',5'',6',6'',7',7a'-HEXAHYDRO-1'<i>H</i>,8''<i>H</i>-DISPIRO[INDENO[1,2-<i>b</i>]QUINOXALINE-11,3'-PYRROLIZINE-2',7''-INDOLIZIN]-8''-ONES <i>via</i> CYCLOADDITION REACTION
DOI:
https://doi.org/10.1007/5916Ключевые слова:
azomethine ylide, 11H-indeno[1, 2-b]quinoxalin-11-one, L-proline, 1, 3-dipolar cycloaddition.Аннотация
The 1,3-dipolar cycloaddition reaction of (E)-7-arylidene-3-(1H-benzotriazol-1-yl)-6,7-dihydroindolizin-8(5H)-one and azomethine ylide which was generated in situ by the reaction of 11H-indeno[1,2-b]quinoxalin-11-one and L-proline afforded novel 1'-aryl-3''-(1H-benzotriazol-1-yl)-5',5'',6',6'',7',7a'-hexahydro-1'H,8''H-dispiro[indeno[1,2-b]quinoxaline-11,3'-pyrrolizine-2',7''-indolizin]-8''-one in moderate yields. The structures of all the products were characterized thoroughly by NMR, IR spectra, HRMS together with X-ray crystallographic analysis.Загрузки
Опубликован
2021-02-23
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Оригинальные статьи