High-Yield Synthesis of Pyridyl Conjugated Microporous Polymer Networks with Large Surface Areas: From Molecular Iodine Capture to Metal-Free Heterogeneous Catalysis was written by Zuo, Hongyu;Wei, Lyu;Zhang, Weiyi;Li, Ying;Liao, Yaozu. And the article was included in Macromolecular Rapid Communications in 2020.Formula: C13H10N2S This article mentions the following:
Capturing volatile radioactive nuclides including iodine (I129 or I131) is one of the major problems to be solved for environmental sustainability. Multiple types of functional microporous materials such as metal organic frameworks and covalent organic frameworks have been constructed for iodine emission control. However, most of the microporous materials are limited by their weak binding force with iodine and low stability, leading to low capture efficiencies. Herein, the synthesis of pyridyl conjugated microporous polymer networks with large surface areas (PCMP-Y) up to 1304 m2 g-1 and high yields up to 95% via a simple Yamamoto cross-coupling reaction, is reported. The PCMP-Y carries amine and pyridine N groups which have stronger interactions with iodine mols. The high sp. surface areas and porosities of PCMP-Y facilitate iodine capture, delivering a maximum adsorption capacity of 4.75 g g-1 in a short time (3 h), which is superior to a majority of porous materials reported. Moreover, the reversible desorption nature of PCMP-Y capturing iodine imparts a platform for metal-free heterogeneous catalyst, which can be applied to synthesize aminobenzothiazole medicines via O2-promoted cascade reactions. In the experiment, the researchers used many compounds, for example, N-Phenylbenzo[d]thiazol-2-amine (cas: 1843-21-6Formula: C13H10N2S).
N-Phenylbenzo[d]thiazol-2-amine (cas: 1843-21-6) belongs to thiazole derivatives. Thiazole rings are planar and aromatic. Thiazoles are characterized by larger pi-electron delocalization than the corresponding oxazoles and have therefore greater aromaticity. Electrophilic attack at nitrogen depends on the presence of electron density at nitrogen as well as the position and nature of substituent linked to the thiazole ring.Formula: C13H10N2S
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica