lecture 16 sp 09 given - Lecture 16 Chemistry 310N Organic...

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Lecture 16 Chemistry 310N Organic Chemistry II for Prehealth Professionals Unique number: 53185 Tu,Th 12:30-2:00 pm, Welch 2.224 Professor: Jonathan Sessler, Ph.D. sessler@mail.utexas.edu EXAM II -- In Class March 31st, will cover through Section 19.7. Chapter 19 is hard; study it and work the problems! Work the harder problems from Chapter 16 too; they may help.
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Post-Spring Break Quiz Grab a piece of paper, write your name and UT ID # n it and by the end of class submit it while: on it, and by the end of class submit it, while: Showing reagents and experimental conditions needed t bring about each reaction o bring about each reaction. Ph O Cl (a) (b ) (c) OH O OMe O NH 2 O (d ) (e) Phenylacetic acid (g ) (h ) 2 (f)
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Chapter 19 nolate Anions & Enolate Anions & amines Eamines
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ormation of an Enolate Anion Formation of an Enolate Anion nolate anions are formed by treating an aldehyde Enolate anions are formed by treating an aldehyde, ketone, or ester, each of which has at least one α -hydrogen, with base, O O O Na + CH 3 -C- H NaOH H C C-H H H C H H 2 O + + An enolate anion – Most of the negative charge in an enolate anion is on oxygen.
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nolate Anions Enolate Anions • Enolate anions are nucleophiles in S N 2 reactions and carbonyl addition reactions, nucleophilic substitution R R O + R' Br O R + Br An enolate anion A 1?haloalkane or sulfonate R RR S N 2 nucleophilic addition O O OO R R R + R R R An enolate anion A ketone A tetrahedral carbonyl addition intermediate
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he Aldol Reaction The Aldol Reaction • The most important reaction of enolate anions is nucleo- philic addition to the carbonyl group of another molecule f the same or different compound of the same or different compound.
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This note was uploaded on 06/15/2009 for the course CH 53185 taught by Professor Sessler during the Spring '09 term at University of Texas at Austin.

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lecture 16 sp 09 given - Lecture 16 Chemistry 310N Organic...

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