Removal of Acidic or Basic 伪-Amino Acids in Water by Poorly Water Soluble Scandium Complexes

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• 作者：Nobuyuki Hayashi ; Shigeki Jin ; Tomomi Ujihara
• 刊名：The Journal of Organic Chemistry
• 出版年：2012
• 出版时间：November 2, 2012
• 年：2012
• 卷：77
• 期：21
• 页码：9652-9658
• 全文大小：427K
• 年卷期：v.77,no.21(November 2, 2012)
• ISSN：1520-6904

文摘

To recognize 伪-amino acids with highly polar side chains in water, poorly water soluble scandium complexes with both Lewis acidic and basic portions were synthesized as artificial receptors. A suspension of some of these receptor molecules in an 伪-amino acid solution could remove acidic and basic 伪-amino acids from the solution. The compound most efficient at preferentially removing basic 伪-amino acids (arginine, histidine, and lysine) was the receptor with 7,7鈥?[1,3-phenylenebis(carbonylimino)]bis(2-naphthalenesulfonate) as the ligand. The neutral 伪-amino acids were barely removed by these receptors. Removal experiments using a mixed amino acid solution generally gave results similar to those obtained using solutions containing a single amino acid. The results demonstrated that the scandium complex receptors were useful for binding acidic and basic 伪-amino acids.