24 - BIO 311C Spring 2010 Lecture 24 Monday 29 Mar. If you...

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Unformatted text preview: BIO 311C Spring 2010 Lecture 24 Monday 29 Mar. If you have a concern about the way Exam 1 or Exam 2 were graded, please set up an appointment to see Rebecca before 4:00 p.m. tomorrow (Tuesday 30 March). Oxidation of a Hydrocarbon saturated ydrocarbon unsaturated hydrocarbon alcohol alcohol ketone aldehyde carboxylc acid hydrolysis hydrolysis With respect to a saturated hydrocarbon:- hydrocarbons with a single double bond, and alcohols, are 2 units more oxidized,- aldehydes and ketones are 4 units more oxidized,- carboxylic acids are 6 units more oxidized. * Pathway (1) Pathway (2) More details of some of the individual reactions of these pathways are shown in the following four presentation slides. 1 2a 2b 3a 3b 4b Example unsaturation dehydrogenase enzyme R CH 2 CH 3 [2H ] R CH CH 2 R CH 2 CH 3 R CH CH 2 [2H ] saturation This half-reaction could be written to show more detail, as: Unsaturation of a Saturated Hydrocarbon * saturated hydrocarbon unsaturated hydrocarbon saturated hydrocarbon unsaturated hydrocarbon [2H ] Reaction 1 example dehydration R CH CH 2 R CH CH 3 OH unsaturated hydrocarbon alcohol hydrolysis Hydrolysis of an Unsaturated Hydrocarbon * R CH CH 2 unsaturated hydrocarbon R CH CH 3 OH alcohol hydrolysis H 2 O enzyme This reaction may be written to show more detail as: H-OH H-OH Reaction 2a Note: this reaction produces a secondary alcohol example CH 2 CH 2 OH R CH CH 2 unsaturated hydrocarbon * H 2 O R CH 2 CH 2 OH hydrolysis alcohol Hydrolysis of an Unsaturated Hydrocarbon R CH CH 2 unsaturated hydrocarbon R alcohol hydrolysis H-OH enzyme This reaction may be written to show more detail as: dehydration H-OH Reaction 2b Note: this reaction produces a primary alcohol example R CH CH 3 OH R CH 2 CH 2 OH [2H ] R C CH 3 O [2H ] O R CH 2 C H alcohol alcohol ketone aldehyde Oxidation of an Alcohol * Oxidation of a secondary alcohol Oxidation of a primary alcohol Reaction 2a Reaction 2b example Oxidation of Two Sulfhydryl Functional Groups...
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24 - BIO 311C Spring 2010 Lecture 24 Monday 29 Mar. If you...

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