SYNTHESIS AND COMPLETE NMR SPECTRAL ASSIGNMENTS OF NEW BENZYLAMINO COUMARIN DERIVATIVE

V. Dekić, N. Radulović, Milenko N. Ristić, B. Dekić, Novica R. Ristić
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引用次数: 0

Abstract

This research involves the reaction of 4-chloro-3-nitrocoumarin and (4-methoxyphenyl)methanamine, whereby a novel coumarin derivative 4-[(4-methoxybenzyl) amino]-3-nitro-2H-chromen-2-one was obtained in good yield. The reaction was carried out in ethyl acetate, in the presence of triethylamine. Also, a detailed spectral analysis of a new coumarin derivative is presented. Resonance assignment was achieved using one- (1H NMR and 13C NMR) and two-dimensional NMR techniques (1H-1H-COSY, NOESY, HSQC, and HMBC). The NOESY correlations of protons from arylamino substituent and coumarin core indicate their spatial orientation.
新的苯氨基香豆素衍生物的合成及完整的核磁共振谱配位
本研究以4-氯-3-硝基香豆素和(4-甲氧基苯基)甲胺为原料,合成了新的香豆素衍生物4-[(4-甲氧基苯基)氨基]-3-硝基- 2h -2- 1。该反应在乙酸乙酯中,在三乙胺的存在下进行。同时,对一种新的香豆素衍生物进行了详细的光谱分析。利用一核磁共振(1H NMR和13C NMR)和二维核磁共振技术(1H-1H- cosy, NOESY, HSQC和HMBC)实现了共振分配。芳基取代基质子与香豆素核质子的noasy相关性表明它们的空间取向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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