Oxidative valorization of lignin into valuable phenolics: Effect of acidic and basic catalysts and reaction parameters was written by Kumar, Avnish;Biswas, Bijoy;Kaur, Ramandeep;Krishna, Bhavya B.;Thallada, Bhaskar. And the article was included in Bioresource Technology in 2021.SDS of cas: 28020-37-3 This article mentions the following:
The aromatic nature of lignin makes it a good source for the production of numerous platform chems. The valorization of lignin into valuable compounds depends upon the type of bonds and functionality present in lignin. Here, we have studied the depolymerization of rice straw alkali lignin in N2 and O2 with acidic (ZSM-5), basic (MgO) catalyst and with their mixtures (1:1, 3:7 and 7:3). The effect of hydrogen peroxide on lignin depolymerization was also examined Maximum yield of bio-oil (50 wt%) was obtained with pure ZSM-5 and 1 mL hydrogen peroxide in nitrogen atm., while maximum conversion (60%) was observed in oxygen environment during the non-catalytic depolymerization of lignin. Bio-oil characterization through GC-MS showed maximum selectivity towards 2-methoxy-4-vinylphenol with 38.5 area% in the bio-oil of ZSM-5-N2. The bio-oils have also been characterized using 1H NMR, FT-IR and GC-MS. In the experiment, the researchers used many compounds, for example, 3-Amino-2,6-dimethoxypyridine (cas: 28020-37-3SDS of cas: 28020-37-3).
3-Amino-2,6-dimethoxypyridine (cas: 28020-37-3) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Halopyridines are particularly attractive synthetic building blocks in a variety of cross-coupling methods, including the Suzuki-Miyaura cross-coupling reaction.SDS of cas: 28020-37-3