Two chiral building blocks 1 and 2 for anti-and syn-1, 3-diols has been achieved in 8 steps and 7 steps respectively, starting from the readily available and inexpensive D (+)-xylose 3.
以对溴苯乙酮为原料合成了一种蒽系衍生物b,其结构经IR和1 H NMR表征。利用紫外分光光度法考察了化合物b对金属阳离子的识别性能。实验结果表明,化合物b对Pb2+具有高选择性识别能力,说明在主客体识别中分子尺寸的匹配和化合物中基团的...以对溴苯乙酮为原料合成了一种蒽系衍生物b,其结构经IR和1 H NMR表征。利用紫外分光光度法考察了化合物b对金属阳离子的识别性能。实验结果表明,化合物b对Pb2+具有高选择性识别能力,说明在主客体识别中分子尺寸的匹配和化合物中基团的空间合理排布是化合物b和Pb2+间能发生相互作用的重要根据。展开更多
文摘Two chiral building blocks 1 and 2 for anti-and syn-1, 3-diols has been achieved in 8 steps and 7 steps respectively, starting from the readily available and inexpensive D (+)-xylose 3.