Boron-nitrogen macrocycles: a new generation of calix[3]arenes.
The simple condensation reaction of 3,5-di-tert-butyl salicylaldehyde and 3-aminophenylboronic acid leads to a trimeric macrocyclic compound. The ability of this molecule to include small organic molecules was in a first approximation analyzed by (1)H NMR spectroscopy and X-ray crystallography.
Barba
Victor
V
Centro de Investigaciones Quimicas, UAEM, Av. Univ. 1001, C. P. 62210 Cuernavaca, Mexico. vbarba@ciq.uaem.mx
Höpfl
Herbert
H
Farfán
Norberto
N
Santillan
Rosa
R
Beltran
Hiram I
HI
Zamudio-Rivera
Luis S
LS