-
47浏览
-
0点赞
-
0收藏
-
0分享
-
87下载
-
0评论
-
引用
期刊论文
Unprecedented synthesis of chiral calix[4](aza)crowns and its potent encapsulating methanol
Sci China Ser B-Chem, Apr. 2009, vol. 52, no.4, 497-504,-0001,():
Unprecedented synthesis of chiral (aza)crown ethers of calix[4]arene derivatives bearing a carboxyl amide bridge was described. The synthesis proceeds through condensation of the corresponding dinitriles with optically active 1,2-aminoalcohols, and is catalyzed by the ZnCl2 Lewis acid at elevated temperature in a very efficient one-pot process. The cavity of calix[4](aza)crowns can encapsulate methanol molecules by O-H· · ·π interaction, which has been confirmed by X-ray crystal structures and ESI-MS.
【免责声明】以下全部内容由[王乐勇]上传于[2010年03月19日 16时48分00秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。
本学者其他成果
同领域成果