Ren, Shi-Chao; Yang, Xing; Mondal, Bivas; Mou, Chengli; Tian, Weiyi; Jin, Zhichao; Chi, Yonggui Robin published their research in Nature Communications on December 31 ,2022. The article was titled 《Carbene and photocatalyst-catalyzed decarboxylative radical coupling of carboxylic acids and acyl imidazoles to form ketones》.Name: 3-(Methoxycarbonyl)benzoic acid The article contains the following contents:
The carbene and photocatalyst co-catalyzed radical coupling of acyl electrophile and a radical precursor is emerging as attractive method for ketone synthesis. However, previous reports mainly limited to prefunctionalized radical precursors and two-component coupling. Herein, an N-heterocyclic carbene and photocatalyst catalyzed decarboxylative radical coupling of carboxylic acids and acyl imidazoles is disclosed, in which the carboxylic acids are directly used as radical precursors. The acyl imidazoles could also be generated in situ by reaction of a carboxylic acid with CDI thus furnishing a formally decarboxylative coupling of two carboxylic acids. In addition, the reaction is successfully extended to three-component coupling by using alkene as a third coupling partner via a radical relay process. The mild conditions, operational simplicity, and use of carboxylic acids as the reacting partners make our method a powerful strategy for construction of complex ketones from readily available starting materials, and late-stage modification of natural products and medicines. In the experiment, the researchers used 3-(Methoxycarbonyl)benzoic acid(cas: 1877-71-0Name: 3-(Methoxycarbonyl)benzoic acid)
3-(Methoxycarbonyl)benzoic acid(cas: 1877-71-0) belongs to esters. They are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils. They 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.Name: 3-(Methoxycarbonyl)benzoic acid
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics