Synthesis of aza-crown ethers

Biaryl Phosphane Ligands in Palladium‐Catalyzed Amination

“…[263] Stang used DavePhos as ligand in the palladium-catalyzed arylation of 175 in the synthesis of precursors for the assembly of supramolecules by coordination-driven self-assembly (Scheme 75). [264] Bolm employed similar conditions in the arylation of 1,4,7-triazacyclononanes which can act as chelating ligands in bioorganic chemistry (Scheme 76).…”

Synthesis of 4-Nitro- and 4-Aminophenylazacrown Ethers

“…[6][7][8] Currently there are quite a number of diverse synthetic procedures that lead to aza-macroheterocyclic compounds. [9][10][11][12][13][14] However, complex functional systems that include azacrown compounds as structural elements have been described to a much lesser extent. The instability of azamacrocyclic compounds under the conditions required to achieve their transformation into complex organic products is one of the reasons for this.…”

New bis(15-crown-5) derivatives and their physicochemical properties

“…The diversity of crown ethers and their sheer number reflect their popularity in contemporary chemistry. Bis(crown-ethers) and their applications have been widely described in the literature [1][2][3] . The first compounds of this type appeared three decades ago 4 .…”