New Macrocyclic Ligands. X. 'Reinforced' Single-Ring and Three-Ring Systems Derived from a Common Series of O2N2- and O3N2-Macrocyclic Precursors

1999 ◽  
Vol 52 (12) ◽  
pp. 1139 ◽  
Author(s):  
Tae-Ho Ahn ◽  
Jeong Kim ◽  
Jun Wang ◽  
Leonard F. Lindoy
Keyword(s):  
Macrocyclic Ligands ◽  
Ring Systems ◽  
Nitrogen Donor ◽  
Single Ring

The synthesis of new ‘reinforced’ O2N2- and O3N2-donor single macrocycles together with isomeric three-ring products is described. The new derivatives, which respectively incorporate intra- and inter-ring bridges between nitrogen donor atoms, were obtained on reaction of the parent membered macrocycles with 1,3-dibromopropane (or, in the case of the monomeric ‘reinforced’ rings, also 1,2-dibromoethane).

Synthesis of Complexes of Some Transition Metals with Nitrogen Donor Macrocyclic Ligands

2003 ◽  
Vol 33 (10) ◽  
pp. 1911-1926 ◽  
Author(s):  
Deepali Jain ◽  
Anjana Sarkar ◽  
Sulekh Chandra ◽  
Ramesh Chandra
Keyword(s):  
Transition Metals ◽  
Macrocyclic Ligands ◽  
Nitrogen Donor

Lanthanide(III) complexes of six-nitrogen-donor macrocyclic ligands with benzyl-type peripheral substituents, and crystal structure of [La(NO3)2(H2O)(C36H38N6)](NO3)(H2O)

Polyhedron ◽  
2002 ◽  
Vol 21 (4) ◽  
pp. 425-433 ◽  
Author(s):  
Franco Benetollo ◽  
Gabrı̈ella Bombieri ◽  
Adedoyı́n M. Adeyga ◽  
Kathleen K. Fonda ◽  
William A. Gootee ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Macrocyclic Ligands ◽  
Nitrogen Donor

New Macrocyclic Ligands. VII. The Synthesis of Mixed-Donor Spiro-Linked Macrocycles

1995 ◽  
Vol 48 (12) ◽  
pp. 1917 ◽  
Author(s):  
J Kim ◽  
LF Lindoy ◽  
OA Matthews ◽  
GV Meehan ◽  
J Nachbaur ◽  
...  
Keyword(s):  
Comparative Studies ◽  
Macrocyclic Ligands ◽  
In Situ Reduction ◽  
Reduction Step ◽  
Double Ring ◽  
Single Ring ◽  
Ether Oxygen ◽  
Methylene Groups ◽  
Second Procedure

The syntheses of five new spiro -linked bis-macrocyles, incorporating four ether oxygen and four or six secondary nitrogen heteroatoms , are reported. Two strategies were employed-the first involved the condensation of a spiro tetraaldehyde with 2 equiv. of ethane-1,2-diamine or propane-1,3-diamine or 2,2′-diaminodiethylamine followed by in situ reduction of the resulting intermediate tetraimines . The second procedure began with pentaerythrityl tetraamine [C(CH2NH2)4] which was then condensed with 2 equiv. of a dialdehyde moiety in which two ether oxygen atoms, bridged by either two or three methylene groups, were incorporated in its backbone. A related in situ reduction step to that employed in the first procedure then yielded the required double-ring macrocycles. For use in comparative studies, the corresponding single-ring macrocycles were also synthesized where they had not been reported previously.

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