Author/Authors :
Boyko، نويسنده , , Vyacheslav I. and Shivanyuk، نويسنده , , Alexander and Pyrozhenko، نويسنده , , Volodymyr V. and Zubatyuk، نويسنده , , Roman I. and Shishkin، نويسنده , , Oleg V. and Kalchenko، نويسنده , , Vitaly I.، نويسنده ,
Abstract :
Calix[4]arenes bearing a methoxy and an R or S α-phenylethylacetamido group at the narrow rim of macrocycles are stereoselectively acylated with 1 equiv of trichloroacetyl isocyanate to give chiral asymmetrically substituted calix[4]arenecarbamates in preparative yields and high diastereomeric excess.
