Recently I am researching about METAL-FREE SYNTHESIS; CARBOXYLIC-ACIDS; 2+2 PHOTOCYCLOADDITION; PHOTOREDOX CATALYSIS; ESTERS; TRIFLUOROMETHYLATION; ACTIVATION; COMPLEXES; ARYLATION, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21771131, 21471108, 21773163]; Natural Science Foundation of Jiangsu ProvinceNatural Science Foundation of Jiangsu Province [BK20161276]; Scientific and Technologic Infrastructure of Suzhou [SZS201708]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Zhu, DL; Li, HX; Xu, ZM; Li, HY; Young, DJ; Lang, JP. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid. Formula: C8H8O2
We report an approach to the visible light-initiated, nickel-catalyzed esterification of carboxylic acids with aryl bromides. Thioxanthen-9-one works as a triplet photosensitizer to significantly accelerate this cross-coupling to provide aryl esters in moderate to excellent yields at room temperature. A mechanistic investigation indicates that this esterification undergoes the stepwise oxidative addition of an arylbromide to nickel, transmetalation of an aryl-Ni(ii) bromide complex, energy transfer from thioxanthen-9-one to an excited-state aryl-Ni(ii) carboxylate and reductive elimination to the aryl ester. This study contributes to the utilization of ketones as triplet photosensitisers in photochemical transformations.
Formula: C8H8O2. About 3-Methylbenzoic acid, If you have any questions, you can contact Zhu, DL; Li, HX; Xu, ZM; Li, HY; Young, DJ; Lang, JP or concate me.
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com