Acid halides are derivatives of organic acids or inorganic oxo acids or thio acids. Acid halides can be derived from acids by substitution of one or more hydroxyl groups (OH) with halogens (F, Cl, Br or I). General formula of an oxoic acid (when Y = C, then this is a carboxylic acid) and the corresponding acid halide
Depending on the type of halogen, you talk about acid fluorides, acid chlorides, acid bromides or acid iodides.
The name of acid halides is formed from a strain derived from the name of the acid, and the output -oyl halide.
Acid halides are generally much more reactive to nucleophilic reagents than the corresponding acids (halogen atoms are much better than the leaving group than the hydroxyl group), and are often used in the preparation of esters.
Acyl halides or carboxylic acid halides are the acid halides of carboxylic acids. Some examples
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