Non-radical mechanism and toxicity analysis of β-cyclodextrin functionalized biochar catalyzing the degradation of bisphenol A and its analogs by peroxydisulfate was written by Pei, Xuan-Yuan;Ren, Hong-Yu;Liu, Guo-Shuai;Cao, Guang-Li;Xie, Guo-Jun;Xing, De-Feng;Ren, Nan-Qi;Liu, Bing-Feng. And the article was included in Journal of Hazardous Materials in 2022.Application In Synthesis of 4,4′-Methylenediphenol The following contents are mentioned in the article:
Bisphenols (BPs) are distributed in worldwide as typical environmental hormones, which potentially harm the ecol. environment and human health. In this study, four BPs, i.e., bisphenol A, bisphenol F, bisphenol S, and bisphenol AF, were used as prototypes to identify the intrinsic differences in degradation mechanisms correlated with the mol. structures in peroxydisulfate (PDS)-based advanced oxidation processes (AOPs). Electron transfer was the main way of modified biochar to trigger the heterogenous catalysis of PDS, which can cause the degradation of BPs. Phenolic hydroxyl groups on bisphenol pollutants were considered as possible active sites, and the existence of substituents was the main reason for the differentiation in the degradation efficiency of various bisphenols. Results of ecotoxicity prediction showed that most intermediates produced by the degradation of BPs in the β-SB/PDS system, which was dominated by the electron transfer pathway, had a lower toxicity than the parent mols., while the toxicity of several ring cleavage intermediates was higher. This study presents a simple modification scheme for the conversion of biochar into functional catalysts and provides insights into the mechanism of heterogeneous catalytic degradation mediated by modified biochar as well as the degradation differences of bisphenol pollutants and their potential ecotoxicity. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Application In Synthesis of 4,4′-Methylenediphenol).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Application In Synthesis of 4,4′-Methylenediphenol
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts