fungroups30 - SH Sulfide C S C Bis (2-chloroethyl)sulfide...

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Lecture Supplement: Some Important Functional Groups 5 Some Important Functional Groups Functional group: A characteristically bonded group of atoms that determines molecular properties (reactivity, physical properties, etc.) regardless of what molecule it is in. C-H and C-C bonds are not considered to be functional groups by themselves. The carbonyl group (C=O) is not a considered functional group by itself. R = Unspecified carbon group: Alkyl, benzene ring, alkene, etc. R H Functional Group Example Structure Alkene C C Ethylene Tomato – ripening hormone C C H H H H Alkyne C C Acetylene Welding gas C C H H Benzene ring C C C C C C Toluene Solvent CH 3 Alkyl halide (haloalkane) X = F, Cl, Br, I C X Dichlorodifluoromethane Freon-12; a CFC Cl C F F Cl Alcohol C OH Ethanol Yeast fermentation product CH 3 C H H OH Phenol C C C C C C OH Vanillin Natural flavoring agent OH OCH 3 O H Ether C O C Ethyl ether Solvent, anesthetic CH 3 CH 2 O CH 2 CH 3
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6 Lecture Supplement: Some Important Functional Groups Epoxide C C O Epichlorohydrin Epoxy resin component O CH 2 Cl Thiol C SH 3-Methyl-1-butanethiol Present in skunk musk
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Unformatted text preview: SH Sulfide C S C Bis (2-chloroethyl)sulfide WWI poison gas ClCH 2 CH 2 SCH 2 CH 2 Cl Disulfide S S Protein structural unit S S peptide Amine C N Putrescine Present in rotting meat H 2 N NH 2 Ketone C C O C Acetone Solvent O Aldehyde C C O H Benzaldehye Artificial flavor H O Carboxylic acid (carboxyl group; CO 2 H) C C O OH Acetic acid Present in vinegar OH O Ester C C O O C Methyl methacrylate Polymerized to form plexiglass OCH 3 O Lecture Supplement: Some Important Functional Groups 7 Amide C C O N Peptide linkage Joins amino acids in proteins N O N H H O R R R Acid chloride C C O Cl Adipoyl chloride Used in nylon synthesis Cl O O Cl Acid anhydride C C O O C O C Acetic anhydride Used in aspirin synthesis O O O Imine C N Rhodopsin Essential for vision N retinal opsin H Nitrile C N Acetonitrile Solvent CH 3 C N Nitro N O O 2,4,6-Trinitrotoluene (TNT) Explosive CH 3 NO 2 NO 2 O 2 N...
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This note was uploaded on 10/15/2010 for the course CHEM 213 taught by Professor Johnson during the Spring '10 term at Lyndon State.

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fungroups30 - SH Sulfide C S C Bis (2-chloroethyl)sulfide...

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