β-DDB及其衍生物的结构与红外光谱特征  

The Structures and Characteristic Infrared Spectra of β-DDB and Its Derivatives

作　　者：葛永辉[1] 郭瑞云[2] 常俊标[2] 陈荣峰[2] 胡靖[1] 

机构地区：[1]中国科学院兰州化学物理所,兰州730000 [2]河南省科学院河南省化学研究所,郑州450002

出　　处：《光谱学与光谱分析》2001年第2期180-182,共3页Spectroscopy and Spectral Analysis

摘　　要：总结归属了肉豆蔻醚酸甲酯、 6 Br 肉豆蔻醚酸甲酯、β DDB (6 ,6′ 二甲氧基 4,5 ,4′,5′ 二次甲二氧基 2 ,2′ 二甲氧羰基联苯 )及其 5种衍生物的主要红外吸收谱带和特征 ,讨论了其红外吸收频率随化合物结构变化的规律。结果表明分子中酯基的改变主要对羰基的伸缩振动频率有较大影响 ,而对苯环的骨架振动影响较小 ;当苯环上H原子被其他取代基取代时 ,羟基及苯环的骨架吸收均发生显著变化。The characteristic infrared bands of the 3,4-methylenedioxy-5-methoxybenzoate,6-Br-3,4-methylenedioxy-5-methoxybenzoate, β -DDB (6,6′-dimethoxy-4,5,4′,5′-dimethylenedioxy-2,2′-dimethoxycarbonylbiphenyl) and its five derivatives were assigned .The efects of the substituents of these compounds on their IR data were discussed.The results indicated the varying of ester alkyl mainly influences the CO double band stretching mode,but has little effects on the CC double band stretching mode of the phenyl.When the H atom was substituted by other substituents,the absorptions of the CO and CC both changed.

关 键 词：肉豆寇醚酸甲酸 联苯化合物 6-Br-肉豆寇醚酸甲酯 β-DDB 结构 红外光谱特征 

分 类 号：O625.13[理学—有机化学] O621.13[理学—化学]