Synthetic Studies on<scp>l</scp>-Proline and (4<b>
<i>R</i>
</b>)-Hydroxy-<scp>l</scp>-proline Derivatives
作者:Cristina Minguillón、Teresa González、Olga Abad、M. Carmen Santano
DOI:10.1055/s-2004-822384
日期:——
The preparation of a number of l-proline and (4R)-hydroxy-l-proline derivatives to assess their enantioselectivity when applied to several techniques and experimental conditions is described. All the derivatives prepared incorporated at least one 3,5-disubstituted aromatic ring that contained nitro, chloro or methyl groups and were obtained by classical methods. In spite of the difficulties that arise from the presence of rotational isomers in most cases, the compounds studied are fully described by their 1H and 13C NMR spectra.
本文介绍了一些 l-脯氨酸和(4R)-羟基-l-脯氨酸衍生物的制备方法,以评估它们在应用多种技术和实验条件时的对映选择性。所有制备的衍生物都包含至少一个含有硝基、氯基或甲基的 3,5-二取代芳环,并通过经典方法获得。尽管在大多数情况下旋转异构体的存在会带来一些困难,但所研究的化合物都能通过其 1H 和 13C NMR 光谱得到完整的描述。