Author/Authors :
Averin، نويسنده , , Alexei D. and Shukhaev، نويسنده , , Anton V. and Buryak، نويسنده , , Alexei K. and Denat، نويسنده , , Franck and Guilard، نويسنده , , Roger and Beletskaya، نويسنده , , Irina P.، نويسنده ,
Abstract :
New bicyclic cryptand type compounds are synthesized by reacting 1,7-di(3-bromobenzyl)cyclen with 1 equiv of linear polyamines under dilute conditions using Pd-catalyzed amination. Bis(cyclen) and tris(cyclen) compounds containing linear polyamine linkers between benzylated cyclens are obtained by a similar procedure using different reaction conditions. Cyclization of these species via intramolecular catalytic diamination led to tri- and tetracyclic polyaza compounds.
