124318-72-5Relevant articles and documents
Bimacrocyclic 1,10-Phenanthroline Cyclophanes
Luening, Ulrich,Mueller, Michael
, p. 643 - 646 (2007/10/02)
The addition of lithium aryls 3 to 1,10-phenanthroline (2), functionalization of the rearomatized bisadduct 8b to the tetraphenol 8d, and cyclization of 8d with two equivalents of an α,ω-ditosylate 9 led to a highly symmetrical, conformer-free bimacrocyclic 1,10-phenanthroline 10a in which the basic and coordinating region possesses a concave shielding.