Introducing a 4-pyridyl group on the backbone of polybenzoxazine to an analog fixed-DMAP catalyst was written by Guo, Tianfo;Tong, Haoying;Li, Zhenjiang;Sun, Jie;Li, Yongqiang;Yan, Rui;Liu, Bo;Zhang, Zhihao;Zhu, Yuejia;Guo, Kai. And the article was included in European Polymer Journal in 2021.Related Products of 76-83-5 This article mentions the following:
Polybenzoxazine (PBz) anchored with an N-4′-pyridyl group on the backbone was prepared and characterized. Phenolic-type polybenzoxazine was selectively prepared by thermally initiated ring-opening polymerization of N-(4′-pyridyl)benzoxazine (Bz-Py). The loading of the catalytic moiety pyridyl on PBz-Py was 2.7 mmol g-1. The catalytic comparison of the prepared PBz-Py to com. PS-DMAP in acylation reactions was investigated. Further extension to PBz-Py-catalyzed silylation and tritylation reactions resulted in high yields. The catalyst retained 85% activity after 4 recycles. The implementation of a 4-pyridyl group on the PBz backbone as a new type of polymeric catalyst showcased a general manifold to introduce catalytic moieties to designed polybenzoxazine catalysts. In the experiment, the researchers used many compounds, for example, (Chloromethanetriyl)tribenzene (cas: 76-83-5Related Products of 76-83-5).
(Chloromethanetriyl)tribenzene (cas: 76-83-5) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Related Products of 76-83-5
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics