XII-Organic Chemistry Chapter-9 th Ms sheeba Rizvi May-19,2011 - PowerPoint PPT Presentation

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XII-Organic Chemistry Chapter-9 th Ms sheeba Rizvi May-19,2011

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  1. Carboxylic Acids • XII-Organic Chemistry Chapter-9th Ms sheeba Rizvi May-19,2011

  2. O C O H • Functional group : -CO0H • General formula : CnH2n+1COOH • IUPAC Name : Alkanoic acid • Common Name : common name+ic acid

  3. Common Names of Carboxylic Acids:- • . Common Names Source • Formic acid > Formica = Ant (Latin) • Acetic acid > Acetum = vinegar (Latin) • Butyric acid > Butyrum = Butter (Latin) • Propanoic acid >protos-first, pion-fat (Greek) • Valeric acid > A Herb Name = “Valerian • Caproic acid > Caper = Goat (Latin) • Stearic acid > Stear = Tallow (Greek)

  4. IUPAC Naming:- ALKANE ALKANOIC ACID

  5. Aromatic Carboxylic acids: In the case of a ring to which – COOH is attached the parent ring in named and suffix carboxylic acid is used (retaining the final e) OH COOH O-hydroxy benzene carboxylic acid