摘要
以溴代正丁烷与1-(2,3,4,6-四-O-乙酰基-β-D-吡喃葡萄糖基)咪唑(化合物1)为原料合成了溴化1-(2,3,4,6-四-O-乙酰基-β-D-吡喃葡萄糖基)-3-正丁基咪唑盐(化合物2),它是葡萄糖衍生的手性N-杂环卡宾前体.化合物2的结构中存在多个手性碳原子,导致它的核磁共振(NMR)谱较为复杂.在此,用元素分析、红外吸收光谱(IR)以及液相色谱-高分辨质谱(LC-HRMS)对它的组成进行了分析,然后利用1D和2D NMR谱(包括~1H NMR、^(13)C NMR、DEPT135、DEPT90、DEPT45、COSY、~1H-^(13)C HSQC、~1H-^(13)C HMBC)对化合物2的~1H和^(13)C NMR信号进行了归属.
1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3-butylimidazolium bromide (compound 2) was synthesized with1-bromobutane and 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl) imidazole (compound 1), which is a glucose-derived chiralN-heterocyclic carbene precursor. Multiple chiral carbon atoms in compound 2 lead to quite complex nuclear magneticresonance (NMR) spectra. In this study, we analyzed compound 2 using elemental analysis, infrared absorption spectroscopy(IR), liquid chromatography-high resolution mass spectrometry (LC-HRMS), and assigned the 1H NMR and 13C NMR signalswith one-dimensional (1D) and two-dimensional (2D) NMR spectroscopy, including 1H NMR, 13C NMR, DEPT135, DEPT90,DEPT45, COSY, 1H-13C HSQC and 1H-13C HMBC.
作者
周中高
元洋洋
黄丽
刘金香
谢永荣
ZHOU Zhong-gao,YUAN Yang-yang,HUANG Li,LIU Jin-xiang,XIE Yong-rong(Key Laboratory of Jiangxi University for Functional Materials Chemistry, College of Chemistry and Chemical Engineering, Gannan Normal University,Ganzhou 341000, Chin)
出处
《波谱学杂志》
CAS
CSCD
北大核心
2018年第2期215-225,共11页
Chinese Journal of Magnetic Resonance
基金
国家自然科学基金资助项目(21562002
21461002)
江西省高等学校功能材料化学重点实验室开发课题资助项目(FMC16201)