aryylihalidien
Aryylihalidien, in the context of organic chemistry, refers to aryl halides—compounds in which a halogen atom (fluorine, chlorine, bromine, or iodine) is directly bonded to an an aromatic carbon. The general formula is Ar–X, where Ar is an aryl group (often a benzene ring) and X is a halogen. Simple examples include fluorobenzene, chlorobenzene, bromobenzene, and iodobenzene, as well as their substituted derivatives.
Aryl halides differ from alkyl halides because the halogen attaches to an sp2-hybridized carbon of an aromatic
Synthesis methods commonly involve electrophilic halogenation of arenes using halogens and Lewis acids (for example, Cl2/FeCl3
Applications of aryl halides include their use as coupling partners in Suzuki–Miyaura, Heck, Negishi, and Sonogashira
Safety and environmental concerns vary with the specific compound, but many aryl halides can be toxic or