Catalytic depolymerization of lignin via transfer hydrogenation strategy over skeletal CuZnAl catalyst was written by Huang, Yao-Bing;Zhang, Ji-Long;Zhang, Xuan;Luan, Xue;Chen, Hao-Ze;Hu, Bin;Zhao, Li;Wu, Yu-Long;Lu, Qiang. And the article was included in Fuel Processing Technology in 2022.Application In Synthesis of 4-Benzyloxyphenol The following contents are mentioned in the article:
Selective cleavage of the aromatic C-O bonds in lignin is a crucial step for lignin valorization to produce value-added chems., however, the development of efficient catalysts for mild conversions is still challenging. Herein, non-precious skeletal CuZnAl catalysts were firstly reported for the depolymerization of lignin dimers and real organosolv lignin via the catalytic transfer hydrogenation (CTH) method. Typical lignin dimers, including α-O-4, β-O-4 and 4-O-5 types, were all effectively converted to the corresponding aromatics and alcs. in isopropanol under mild reaction condition. Furthermore, birch organosolv lignin was also well depolymerized into monophenols in 56.1 wt% yield. Experiments revealed that the water brought by the wet catalyst effectively promoted the C-O bond cleavage, but slightly decreased the catalyst reactivity toward hydrogenation in isopropanol. Reaction evolution profiles and control experiments suggested that three reaction pathways were included, with the C-O ether bond cleavage and subsequent hydrogenolysis taking precedence over the dehydrogenation or hydrodeoxygenation routes. This work provides an economical and environmentally-friendly method for the selective cleavage of lignin and lignin model compounds into value-added chems., which holds great promise in industrial application. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Application In Synthesis of 4-Benzyloxyphenol).
4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Application In Synthesis of 4-Benzyloxyphenol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem