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首页> 外文期刊>Journal of Agricultural and Food Chemistry >ANALYSIS OF CYCLIC FATTY ACID MONOMER 2-ALKENYL-4,4-DIMETHYLOXAZOLINE DERIVATIVES BY GAS CHROMATOGRAPHY MATRIX ISOLATION FOURIER TRANSFORM INFRARED SPECTROSCOPY
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ANALYSIS OF CYCLIC FATTY ACID MONOMER 2-ALKENYL-4,4-DIMETHYLOXAZOLINE DERIVATIVES BY GAS CHROMATOGRAPHY MATRIX ISOLATION FOURIER TRANSFORM INFRARED SPECTROSCOPY

机译：气相色谱矩阵分离傅里叶变换红外光谱法分析循环脂肪酸单体2-亚烷基-4,4-二甲基氧杂唑啉衍生物

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摘要

Recently, cyclic fatty acid monomers (CFAMs) were isolated from heated flaxseed (linseed) oil and analyzed as methyl ester (ME) derivatives by capillary gas chromatography-matrix isolation-Fourier transform infrared spectroscopy (GC-MI-FTIR) and as 2-alkenyl-4,4-dimethyloxazoline (DMOX) derivatives by GC-electron ionization mass spectrometry (EIMS). The latter produced fragmentation patterns that were used to determine ring and double-bond positions along the hydrocarbon chain. However, for four CFAM ME derivatives, the FTIR spectra were consistent with CFAM structures having either a cyclohexenyl or a cyclohexadienyl ring, whereas those found by EIMS for the corresponding CFAM DMOX derivatives were consistent with both ring structures. In the present study, the FTIR spectra observed for the DMOX derivatives of this CFAM mixture were consistent with the earlier FTIR results obtained for the corresponding ME derivatives. Mass spectral data observed for deuterated analogues are also reported.
机译：最近，从加热的亚麻籽（亚麻籽）油中分离出环状脂肪酸单体（CFAM），并通过毛细管气相色谱-矩阵分离-傅立叶变换红外光谱（GC-MI-FTIR）和2- GC电子电离质谱（EIMS）分析烯基4,4-二甲基恶唑啉（DMOX）衍生物。后者产生的碎裂模式用于确定沿烃链的环和双键位置。但是，对于四种CFAM ME衍生物，FTIR光谱与具有环己烯基或环己二烯基环的CFAM结构一致，而EIMS针对相应CFAM DMOX衍生物发现的那些与两个环结构一致。在本研究中，该CFAM混合物的DMOX衍生物观察到的FTIR光谱与相应的ME衍生物获得的较早FTIR结果一致。还报道了氘化类似物观察到的质谱数据。

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