CH 318N POW 2 - CH 310N POW #6 Williams Fall 2010 Due: 8...

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CH 310N – POW #6 Williams Fall 2010 Due: 8 AM, Tues Oct. 12, 2010 1 Name (print): ____________________________________________________________ Signature: _______________________________________________________________ Do Homework In Pen Please write the first three letters of your last name in the boxes
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CH 310N – POW #6 Williams Fall 2010 Due: 8 AM, Tues Oct. 12, 2010 2 1. Mechanism in a Box: Provide a mechanism, complete with arrow pushing, for the following transformation. The hydrolysis of acid anhydrides does not require added acid catalyst, but the addition of an acid catalyst will speed up the reaction. Don’t forget your lone pairs and charges! (4 pts) O O O O 1. HCl, H 2 O then heat 2. CH 2 N 2 OCH 3 O O The first step in any acid cat. reaction Activated Electrophile Nu. Attack H 3 O + Tetrahedral Intermediate Kick out LG H 3 O + Regenerate "catalyst" Carboxylic Acid H 3 O + For Step 1: O O O O H OH 2 O O O O H 2 O H O H H O HO O O H O H O H H O HO O O OH H OH 2 O HO O O OH H OH O O HO O H OH O O HO O O H H
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CH 310N – POW #6 Williams Fall 2010 Due: 8 AM, Tues Oct. 12, 2010 3 1.) …continued.
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This note was uploaded on 01/12/2011 for the course CH 318N CH 318N taught by Professor Williams during the Spring '10 term at UT Arlington.

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CH 318N POW 2 - CH 310N POW #6 Williams Fall 2010 Due: 8...

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