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This article discusses a new method for synthesizing aryl carboxylic acids from arylacetylenes through ambient electro-oxidation. The method eliminates the need for transition metal catalysts and extra acids/bases, making it a mild and environmentally friendly process. The reaction conditions and substrate scope are explored, and the method exhibits good functional group tolerance and high yields. The article also provides information on various organic compounds, including their physical properties and spectroscopic data, which can be useful for researchers studying these compounds. The authors acknowledge the support of Nanjing Tech University and provide a link to additional supporting information. [Extracted from the article]

C(sp3)–H Bonds are the most common structures in organic molecules. In recent years, the direct functionalization of C(sp3)–H bonds has attracted wide attention and made significant progress. This review mainly focuses on C(sp3)–H bond functionalization of alkanes with or without functional groups via radical processes reported since 2017. In particular, three methods of generating free radicals are discussed: the use of a radical initiator such as TBHP or DTBP; photocatalysis, and via 1,5-hydrogen atom transfer (1,5-HAT). 1 Introduction 2 C(sp3)–H Bond Functionalization of Alkanes 3 C(sp3)–H Bond Functionalization of Alkanes with a Functional Group 4 Conclusions [ABSTRACT FROM AUTHOR]