Selective and Efficient Iodination of thep-Positions of Calix[4]arene Derivatives
摘要:
Selective and very convenient methods of iodination of calix[4]arenes using ICl or NIS have been demonstrated, preparing mono(p-iodo) and 1,3-di(p-iodo) derivatives of calix[4]arenecrown-4 and -5, as well as mono(p-iodo) derivative of tris(O-propyl)calix[4]arene in good yields.
Selective and Efficient Iodination of the<i>p</i>-Positions of Calix[4]arene Derivatives
作者:Atsushi Gunji、Kazuko Takahashi
DOI:10.1080/00397919808004951
日期:1998.11
Selective and very convenient methods of iodination of calix[4]arenes using ICl or NIS have been demonstrated, preparing mono(p-iodo) and 1,3-di(p-iodo) derivatives of calix[4]arenecrown-4 and -5, as well as mono(p-iodo) derivative of tris(O-propyl)calix[4]arene in good yields.
Molecular Design of Chromogenic Calix[4]crowns Which Show Very High Na<sup>+</sup>Selectivity
作者:Hiromasa Yamamoto、Keiko Ueda、K. R. A. Samankumara Sandanayake、Seiji Shinkai
DOI:10.1246/cl.1995.497
日期:1995.7
Chromogenic calix[4]crowns bearing a short crown strap for the metal recognition and an azophenol unit for the optical reading-out were designed and synthesized. Two-phase solvent-extraction establ...