57260-73-8Relevant articles and documents
Formation of a tris(catecholato) iron(iii) complex with a nature-inspired cyclic peptoid ligand
Oh, Jinyoung,Kang, Dahyun,Hong, Sugyeong,Kim, Sun H.,Choi, Jun-Ho,Seo, Jiwon
supporting information, p. 3459 - 3463 (2021/03/22)
Siderophore-mimicking macrocyclic peptoids were synthesized. Peptoid3with intramolecular hydrogen bonds showed an optimally arranged primary coordination sphere leading to a stable catecholate-iron complex. The tris(catecholato) structure of 3-Fe(iii) was determined with UV-vis, fluorescence, and EPR spectroscopies and DFT calculations. The iron binding affinity was comparable to that of deferoxamine, with enhanced stability upon air exposure.
An optimised synthesis of 2-[2,3-Bis(tert -butoxycarbonyl)guanidino] ethylamine
Hickey, Shane M.,Ashton, Trent D.,Khosa, Simren K.,Pfeffer, Frederick M.
scheme or table, p. 1779 - 1782 (2012/08/29)
This short report describes an improved, reliable, and high-yielding (>90%) synthesis of 2-[2,3-bis(tert-butoxycarbonyl)guanidino]ethylamine. The method is scalable (>5 g), and the product obtained directly from the reaction mixture requires no further purification. In addition, this methodology can be successfully applied to other diamine substrates (1,3-propyl and 1,4-butyl; 70% and 61% yield, respectively).
Synthesis and photoluminescence study of di-dendron dendrimers derived from mono-Boc-protected ethylenediamine cores
Zhao, Yili,Liu, Sen,Jiang, Wei,Chang, Yulei,Li, Yapeng,Fang, Xuexun,Wang, Jingyuan
experimental part, p. 264 - 270 (2012/07/13)
This work is focused on the synthesis and optical properties of cone-shaped structural feature di-dendron polyamidoamine dendrimers up to the third generation with mono-Boc-protected ethylenediamine (EDA) as a core. Strong UV absorbance spectra and fluorescence spectra from di-dendron dendrimers with different terminal groups (-NH2, -COOCH3) were studied under different conditions by varying experimental parameters such as concentration and pH. The optical density and fluorescence intensities increased when di-dendron dendrimers generation number increased from 0.5 to 3.0. It was confirmed that the concentration of di-dendron dendrimers plays an important role in fluorescence intensity. The increase in fluorescence intensity was linear in low concentration regions, but the intensity increased slowly in high concentration regions. The results also showed a rapid increase in fluorescence intensity at low pH. The formation of a fluorescence-emitting moiety had a close relationship to protonated tertiary amine groups in di-dendron dendrimers derived from mono-Boc-protected EDA cores. Furthermore, the formation of fluorescent chemical species was irreversible. Copyright