60036-50-2

Upstream product

• 90-05-1 2-methoxy-phenol 
• 100-09-4 4-methoxybenzoic acid 
• 5720-06-9 2-Methoxyphenylboronic acid 
• 123-11-5 4-methoxy-benzaldehyde 
• 92409-15-9 2-(2-methoxyphenoxy)-1-(4-methoxyphenyl)-1-hydroxy-3-propanol 
• 92409-23-9 3-hydroxy-2-(2-methoxyphenoxy)-1-(4-methoxyphenyl)propan-1-one 
• 19513-80-5 2-(2-methoxyphenoxy)-1-(4-methoxyphenyl)ethan-1-one 

Relevant academic research and scientific papers

Gold-catalyzed conversion of lignin to low molecular weight aromatics

A heterogeneous catalyst system, employing Au nanoparticles (NPs) and Li-Al (1:2) layered double hydroxide (LDH) as support, showed excellent activity in aerobic oxidation of the benzylic alcohol group in β-O-4 linked lignin model dimers to the corresponding carbonyl products using molecular oxygen under atmospheric pressure. The synergistic effect between Au NPs and the basic Li-Al LDH support induces further reaction of the oxidized model compounds, facilitating facile cleavage of the β-O-4 linkage. Extension to oxidation of γ-valerolactone (GVL) extracted lignin and kraft lignin using Au/Li-Al LDH under similar conditions produced a range of aromatic monomers in high yield. Hydrolysis of the Au/Li-Al LDH oxidized lignin was found to increase the degree of lignin depolymerization, with monomer yields reaching 40% for GVL extracted lignin. Based on these results, the Au/Li-Al LDH + O2 catalyst system shows potential to be an environmentally friendly means of depolymerizing lignin to low molecular weight aromatics under mild conditions.

N-heterocyclic carbene-catalyzed aerobic oxidative direct esterification of aldehydes with organoboronic acids

A simple procedure affording benzoates through a NHC-catalyzed aerobic oxidative esterification of aldehydes with organoboronic acids has been disclosed. This process allows access to a wide variety of aromatic esters in good to excellent yields under simple, efficient, and sustainable reaction conditions (see scheme).