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Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis. It is a colorless liquid that smells strongly of acetic acid, which is formed by its reaction with ...
If the acyl groups are different, then they are named in alphabetical order in the same way, with anhydride replacing acid and IUPAC name consists of three words. For example, CH 3 CO−O−OCCH 3 is called ethanoic anhydride and CH 3 CO−O−OCCH 2 CH 3 is called ethanoic propanoic anhydride.
The trivial name "acetic acid" is the most commonly used and preferred IUPAC name. The systematic name "ethanoic acid", a valid IUPAC name, is constructed according to the substitutive nomenclature. [8] The name "acetic acid" derives from the Latin word for vinegar, "acetum", which is related to the word "acid" itself.
A common type of organic acid anhydride is a carboxylic anhydride, where the parent acid is a carboxylic acid, the formula of the anhydride being (RC(O)) 2 O. Symmetrical acid anhydrides of this type are named by replacing the word acid in the name of the parent carboxylic acid by the word anhydride. [2] Thus, (CH 3 CO) 2 O is called acetic ...
Preferred IUPAC name. Phenylacetic acid. Systematic IUPAC name. ... (in the form of an acid anhydride), such as with acetic anhydride to form phenylacetone. ...
In IUPAC nomenclature, an acetyl group is called an ethanoyl group. An acetyl group contains a methyl group ( −CH 3 ) that is single-bonded to a carbonyl ( C=O ), making it an acyl group . The carbonyl center of an acyl radical has one non-bonded electron with which it forms a chemical bond to the remainder (denoted with the letter R ) of the ...
In organic chemistry, the acyl group (IUPAC name alkanoyl if the organyl group is alkyl) ... Acetic anhydride: 4.76 Ethyl acetate: 15.9 Acetamide: 38 Acetate anion
Propionic anhydride is an organic compound with the formula (CH 3 CH 2 CO) 2 O. This simple acid anhydride is a colourless liquid. It is a widely used reagent in organic synthesis as well as for producing specialty derivatives of cellulose.