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Ketones and Aldehydes

Ketones and Aldehydes. Aldehyde: An organic molecule with an oxygen double bonded to one of the two outer carbons on the chain. Aldehyde? What?. → → Pentane Pentane → Pentan Pentan → Pentanal Pentanal = . Aldehyde Nomenclature. Ignore the oxygen and name

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Ketones and Aldehydes

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  1. Ketones and Aldehydes

  2. Aldehyde: An organic molecule with an oxygen double bonded to one of the two outer carbons on the chain. Aldehyde? What?

  3. → Pentane Pentane → Pentan Pentan → Pentanal Pentanal = Aldehyde Nomenclature • Ignore the oxygen and name • Remove the 'e' from the end of the name • Add 'al' to the end • That is now the name of the aldehyde

  4. → Formic Acid Formic Acid → Form Formaldehyde Formaldehyde = Aldehyde Common Nomenclature • Get the name of the carboxilic acid closest to representing the molecule • Remove 'ic Acid' • Add 'aldehyde' • That is now the name of your original molecule

  5. Ketone: An organic molecule with an oxygen double bonded to an inner carbon on the chain Ketone? What?

  6. →Pentane Pentane → Pentan Pentan → Pentanone Pentanone→3-Pentanone 3-Pentanone = Ketone Nomenclature • Ignore the oxygen and name • Remove the 'e' at the end • Add 'one' to the end • Number the carbons and place the oxygen • That is now the name of the original molecule

  7. → → Methane → Ethane Methyl Ethyl Ketone Ketone Common Nomenclature • Split the molecule into two sections, the carbons before and after the ketone • Name the sections • Turn the sections into groups and put it together with 'ketone' at the end

  8. Priorities Carboxilic Acid Esters Aldehyde Ketone Alcohols Amines Ethers Everything Else It's a simple question of weight ratios!

  9. Aldehydes – used in the manufacturing of resins, dyes, and organic acids Ketones – used in perfumes and paints as a stabilizer Formaldehyde – Used in tanning, preserving, and embalming and as a germicide, fungicide, and insecticide for plants and vegetables Methyl Ethyl Ketone (MEK) – solvent, poison, used in rubber based cement and ink The Uses of Aldehyde and Ketones (and the uselessness of titles)

  10. Stop. Who would cross the Bridge of Death must answer me these questions three, ere the other side he see. • 3,4-dimethyl 3-phenyl 2-pentanone • 2,4,6 tripentyl heptanal

  11. Then shalt thou count to three, no more, no less. Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.One... Two... Five!!!Three Sir!THREE!!

  12. LAB TIME!!!

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