Acyclic 1,2-/1,3-mixed pentols. Synthesis and general trends in bichromophoric exciton coupled circular dichroic spectra
作者:Dinesh Rele、Ning Zhao、Nakanishi Koji、Berova Nina
DOI:10.1016/0040-4020(96)00012-9
日期:1996.2
The synthesis of all eight configurational isomers of acyclic 1,2,3,4,6-pentols belonging to the 2R enantiomeric series is described. The 1-anthroyl-2,3,4,6-p-methoxycinnamates of these pentols give rise to unique exciton coupled circular dichroic spectra in the range of 220–380 nm. Comparisons with the CD of corresponding bichromophoric derivatives of the lower homologous tetrols, 1-anthroyl-2,3,
描述了属于2 R对映体系列的无环1,2,3,4,6-戊醇的所有八个构型异构体的合成。这些戊醇的1-蒽基-2,3,4,6-对甲氧基肉桂酸酯在220–380 nm范围内产生独特的激子耦合圆二色光谱。与较低同源四元酚1-蒽基-2,3,4-对甲氧基肉桂酸酯的相应双色衍生物的CD的比较导致可预测的总体趋势,其中仅少量差异源自1,3- syn延伸,而主要差异产生从1,3-反扩展。