Authors Tan, FF; He, XY; Tian, WF; Li, Y in NATURE RESEARCH published article about in [Tan, Fang-Fang; He, Xiao-Ya; Tian, Wan-Fa; Li, Yang] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Shaanxi, Peoples R China; [Tan, Fang-Fang; He, Xiao-Ya; Tian, Wan-Fa; Li, Yang] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710054, Shaanxi, Peoples R China; [Li, Yang] Nankai Univ, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China in 2020, Cited 69. SDS of cas: 99-04-7. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7
Cleavage of C-O bonds in lignin can afford the renewable aryl sources for fine chemicals. However, the high bond energies of these C-O bonds, especially the 4-O-5-type diaryl ether C-O bonds (similar to 314 kJ/mol) make the cleavage very challenging. Here, we report visible-light photoredox-catalyzed C-O bond cleavage of diaryl ethers by an acidolysis with an aryl carboxylic acid and a following one-pot hydrolysis. Two molecules of phenols are obtained from one molecule of diaryl ether at room temperature. The aryl carboxylic acid used for the acidolysis can be recovered. The key to success of the acidolysis is merging visible-light photoredox catalysis using an acridinium photocatalyst and Lewis acid catalysis using Cu (TMHD)(2). Preliminary mechanistic studies indicate that the catalytic cycle occurs via a rare selective electrophilic attack of the generated aryl carboxylic radical on the electron-rich aryl ring of the diphenyl ether. This transformation is applied to a gram-scale reaction and the model of 4-O-5 lignin linkages.
About 3-Methylbenzoic acid, If you have any questions, you can contact Tan, FF; He, XY; Tian, WF; Li, Y or concate me.. SDS of cas: 99-04-7
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com