作者:Ana I Oliva、Luis Simón、Francisco M Muñiz、Francisca Sanz、Joaquı́n R Morán
DOI:10.1016/j.tet.2004.03.015
日期:2004.4
Hydrogen-bonding receptors for carboxylic acids have been prepared based on a cis tetrahydrobenzoxanthene skeleton. X-ray diffraction study of one of these compounds revealed that the cleft is suitable for establishing strong linear hydrogen bonds with the oxygen of a water molecule. Complexes that set only three H-bonds with the guests showed no chiral recognition with amino acid derivatives. However, suitable
已经基于顺式四氢苯并氧杂蒽骨架制备了羧酸的氢键受体。这些化合物之一的X射线衍射研究表明,该裂口适合与水分子的氧建立牢固的线性氢键。与客体仅设置三个H键的复合物没有显示出与氨基酸衍生物的手性识别。然而,受体的适当官能化提供了与某些氨基酸衍生物的第四H键,在这种情况下导致显着的对映选择性络合。