84501-28-0Relevant articles and documents
Proton-template synthesis, structure, and characterization of a Robson- type macrocycle with a totally π-conjugated system
Tian, Yunqi,Tong, Jian,Frenzen, Gerlinde,Sun, Jin-Yu
, p. 1442 - 1446 (1999)
π-Conjugated (1-4) and partially reduced (5) macrocyclic Schiff bases have been obtained by proton-template condensation of 2,6-diformyl-4-R1- phenol (R1 = Me, t-Bu) with 1,2-diamino-4,5-R2-benzene (R2 = H, Me).
Triptycene scaffolds: Synthesis and properties of triptycene-derived Schiff base compounds for the selective and sensitive detection of CN? and Cu2+
Emandi, Ganapathi,Browne, Michelle P.,Lyons, Michael E.,Prior, Caroline,Senge, Mathias O.
, p. 2956 - 2965 (2017/04/26)
A series of triptycene-derived Schiff bases were synthesized by condensation between amino triptycenes with an appropriate aldehyde and were isolated in good to excellent (85–90%) yields. Amongst these, a triptycene-hydroxybenzaldehyde Schiff base compound proved to be a selective sensor for cyanide. It exhibited a “turn-on” fluorescence response at 490?nm to CN? facilitated by the nucleophilic addition of CN? to the aldehyde group, accompanied by a visible color change from orange to yellow. Likewise, a triptycene salicylaldehyde adduct was shown to be highly sensitive towards the detection of the CN? ion with a detection limit of 0.9?μM. On the other hand a triptycene-BODIPY Schiff base compound could be used for the detection of Cu2+ ions over other competing, biologically relevant metal ions in acetonitrile. Photophysical studies revealed a 1:1 binding model for the triptycene-BODIPY compound.
Dinucleating Ligand Platforms Supporting Indium and Zinc Catalysts for Cyclic Ester Polymerization
Kremer, Alexandre B.,Osten, Kimberly M.,Yu, Insun,Ebrahimi, Tannaz,Aluthge, Dinesh C.,Mehrkhodavandi, Parisa
supporting information, p. 5365 - 5374 (2016/06/14)
The synthesis of the first alkoxide-bridged indium complex supported by a chiral dinucleating ligand platform (1), along with its zinc analogue (2), is reported. Both complexes are synthesized in a one-pot reaction starting from a chiral dinucleating bis(diamino)phenolate ligand platform, sodium ethoxide, and respective metal salts. The dinucleating indium analogue (7) based on an achiral ligand backbone is also reported. Indium complexes bearing either the chiral or achiral ligand catalyze the ring-opening polymerization of racemic lactide (rac-LA) to afford highly heterotactic poly(lactic acid) (PLA; Pr > 0.85). The indium complex bearing an achiral ligand affords essentially atactic PLA from meso-LA. The role of the dinucleating ligand structure in catalyst synthesis and polymerization activity is discussed.