Synthesis and Structural Properties of 5,17-Bis(N-methyl-N-arylaminocarbonyl)calix[4]arenes. Directing the Substituents toward the Cavity by Use of the Cis-Generating Property of the N-Methylaminocarbonyl Linker
摘要:
A series of cone 5,17-bis(N-arylaminocarbonyl)calix[4]arenes were synthesized and N-methylated using an easy and high-yielding methylation procedure. The structures of the cone 5,17-bis(N-methyl-N-arylaminocarbonyl)calix[4]arene were studied in solution by NMR spectroscopy and in the solid state by X-ray structural resolution. The use of the N-methylaminocarbonyl linker between the calix[4]arene and the aromatic substituent was found to have a dominant influence on the molecular structure, forcing the substituent toward the cavity of the calix[4]arene regardless of the size of the substituent. The linker may be a very useful structure generator when considering the design of molecular receptors.
Synthesis and Structural Properties of 5,17-Bis(<i>N</i>-methyl-<i>N</i>-arylaminocarbonyl)calix[4]arenes. Directing the Substituents toward the Cavity by Use of the Cis-Generating Property of the <i>N</i>-Methylaminocarbonyl Linker
作者:Frederik C. Krebs、Mogens Larsen、Mikkel Jørgensen、Pernille R. Jensen、Mia Bielecki、Kjeld Schaumburg
DOI:10.1021/jo981649d
日期:1998.12.1
A series of cone 5,17-bis(N-arylaminocarbonyl)calix[4]arenes were synthesized and N-methylated using an easy and high-yielding methylation procedure. The structures of the cone 5,17-bis(N-methyl-N-arylaminocarbonyl)calix[4]arene were studied in solution by NMR spectroscopy and in the solid state by X-ray structural resolution. The use of the N-methylaminocarbonyl linker between the calix[4]arene and the aromatic substituent was found to have a dominant influence on the molecular structure, forcing the substituent toward the cavity of the calix[4]arene regardless of the size of the substituent. The linker may be a very useful structure generator when considering the design of molecular receptors.