POW-318-7-Key - Last Name UTEID First Name SCORE KEY...

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Last Name: UTEID: First Name: SCORE: KEY Deadline for POW 318-7: Mar 9, 2009 3:00 PM Provide a mechanism for the following transformation. Show all important flows of electrons, charges and intermediates. Where indicated, (in the structure boxes)- draw the intermediates. H 3 O + 2 o Carbocation Protonated acetal (or ketal) Hint:thisisa nucleophilic attack of water upon the carbocation H 2 O H ~H note: this symbol can be used to indicate proton transf ers Protonated Hemi-acetal Structure (protonated on hydroxyl oxygen) #1 H 3 C C H 2 CH 3 O H 3 C C H 2 CH 3 O O H 3 C C H 2 CH 3 O O OC H 2 CH 2 OH H 3 C C H 2 CH 3 HO H H 2 CH 2 OH H 3 C C H 2 CH 3 HO O CH 2 CH 2 H 3 C C H 2 CH 3 OH H 3 C C H 2 CH 3 O O H H
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This note was uploaded on 04/20/2009 for the course CH 318N taught by Professor Willson during the Spring '08 term at University of Texas.

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POW-318-7-Key - Last Name UTEID First Name SCORE KEY...

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