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Introduction to Organic Chemistry. Functional Group Flashcards. Symbol for the “rest” of an organic molecule. Alkanes. R–CH 2 –CH 2 –R All of the bonds are single bonds (-C-H-, and -C-C-)
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Introduction to Organic Chemistry Functional Group Flashcards
Alkanes • R–CH2–CH2–R • All of the bonds are single bonds (-C-H-, and -C-C-) • Methane CH4Ethane CH3-CH3Propane CH3-CH2-CH3Butane CH3-CH2-CH2-CH3Pentane CH3-CH2-CH2-CH2-CH3Hexane CH3-CH2-CH2-CH2-CH2-CH3Heptane CH3-CH2-CH2-CH2-CH2-CH2-CH3Octane CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3Nonane CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3Decane CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3
Alkenes • R–CH=CH–R • CH2=CH2
Alkynes • R–C≡C–R • H–C≡C–H Hint: A E I
Methyl Group What would an ethyl or propyl group look like?
Carbonyl Group • Found in 5 functional groups • Ketones -Aldehydes -Esters • Carboxyls -Amides • Example: When group is in middle of carbon chain ketone • Example: When group is at end of carbon chain aldehyde
Ketone • Ketones can be shown in text as: RCOR
Aldehyde • Aldehydes can be shown in text as: RCHO
Ester Group • Esters can be shown in text as: RCOOR HINT: Ester is a “COOC”
Carboxyl Group –or- Carboxylic Acid • Carboxylic acids can be shown in text as: RCOOH
Amide Group • Primary amides can be shown in text as: RCONH2
Amino Group • Different than amide b/c “no” carbonyl group • Primary amines can be shown in text as: RNH2
Hydroxyl –or- Hydroxide -Forms alcohols
Ether Group • Ethers can be shown in text as: ROR HINT: Easter Bunny
Nitrite Group • NO2-(ionic form)
Nitrate Group NO3-(ionic form) Hint: “tres”
Phosphate Group • Symbol is
Other basic rules . . . • Functionional groups assume their distinct identity when separated by –CH2– groups. • Thus, the carbonyl (C=O) and hydroxyl (OH) of a carboxylic acid, RCOOH, are part of a single function and are NOT "alcohol-plus-ketone":
Comprehension Check • Name the functional group Ketone Ether Phosphate Amide Aldehyde Amino Hydroxyl Carboxyl
For more practice . . . http://www.execulink.com/~ekimmel/onclick0.htm