Synthesis of Novel Chiral Cholic Acid-Based Molecular Tweezers Containing Unsymmetrically Disubstituted Urea Units Using Microwave Irradiation
作者:Bitao Zeng、Zhigang Zhao、Lijun Zhou、Qinghan Li
DOI:10.3184/174751912x13318994425202
日期:2012.4
An efficient procedure has been developed for the synthesis of new chiral cholic acid molecular tweezer artificial receptors by linking an unsymmetrically disubstituted urea to methyl deoxycholate via a carbonate chain using microwave irradiation. The structures of these new receptors were confirmed by 1H NMR, IR, MS spectra and elemental analysis. Their binding properties were examined by UV-Vis spectra
通过使用微波辐射通过碳酸酯链将不对称双取代的尿素连接到脱氧胆酸甲酯,开发了一种用于合成新的手性胆酸分子镊子人工受体的有效程序。这些新受体的结构通过 1H NMR、IR、MS 光谱和元素分析得到证实。通过紫外-可见光谱滴定检查它们的结合特性。初步结果表明,这些分子镊子不仅能识别阴离子,而且对 D-氨基酸甲酯也表现出良好的对映选择性。