Factors Influencing the Course of the Macrocyclization ofα,ω-Diamines with Esters ofα,ω-Dicarboxylic Acids
作者:Dorota Gryko、Daniel T. Gryko、Hanna Sierzputowska-Gracz、Piotr Pi??tek、Janusz Jurczak
DOI:10.1002/hlca.200490004
日期:2004.1
The efficient synthesis of eight newmacrocyclicamides (lactams) via reaction of diesters with diamines under normal dilution conditions is described. The role of intermolecular H-bond formation and steric hindrance is discussed based on 1H- and 15N-NMR studies of appropriate model compounds. Principles for the optimal choice of esters that can be efficiently transformed into diamides have been developed
Improved Method for the Preparation of Macrocyclic Diamides
作者:Daniel T. Gryko、Dorota Gryko、Janusz Jurczak
DOI:10.1055/s-1999-2798
日期:1999.8
Synthetic and crystallographic studies on pyridinophanes
作者:Daniel T. Gryko、Piotr Pia̧tek、Agnieszka Pȩcak、Marcin Pałys、Janusz Jurczak
DOI:10.1016/s0040-4020(98)00385-8
日期:1998.6
Eight macrocyclic bisamides and tetramides have been synthesized by reaction of dimethyl pyridine-2,6-dicarboxylate 1 with alpha,omega-diaminoethers in methanol as a solvent. Relationship between structure of an amine used and a ratio of bisamide to tetramide has been investigated. The X-ray structure of macrocyclic amides 8, 9, 14 and linear amide 16 are reported. They show intramolecular hydrogen bond patterns within macrocyclic cavities involving N-Py... NHamide, and in the cases of 9, 14 and 16, neutral molecules of water. Stability constants of selected ligands were measured using voltammetry. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Complex formation of pyridine-azacrown ether amide macrocycles with proton and heavy metal ions in aqueous solution