CHEMISTRY 242 – 601

Spring Semester, 2008

ORGANIC CHEMISTRY II

University of Pennsylvania

 


Instructor:  William A. Price, Ph.D.     price@lasalle.edu                                                                            

Teaching Assistants: Onur Atasoylu onur@sas.upenn.edu and Mahmud Hussain mhussain@sas.upenn.edu

Recitations: Onur - Tuesdays 11:00-12:00 in DRLB A-2; Mahmud - Fridays 6:30-7:30 in IAST 3000 (new part of Chemistry bldg.)

Class Meetings:  Tuesdays, January 22 – April 29, 2007 from 6:30-9:20 PM

Location: David Rittenhouse Labs, A-4.

Workshop: Monday evening from 6:00-8:00PM in Vagelos 2000. These sessions will be just for our class and will follow our schedule. Questions about workshop should be directed to Rachel Kohn rkohn@mail.med.upenn.edu Problem sets are posted below as available.

____________________________

Texts:  T.W. Graham Solomons and Craig B. Fryhle, Organic Chemistry, 9 th  Edition, John Wiley & Sons, 2008.

Web sites: 

www.wiley.com/college/wileyplus

Frances Carey's Organic Chemistry has an excellent accompanying website as well. Check it out.

Course Description and Objectives:

            Chemistry 242 is a course that will build on the foundation that was established in CHM 241.  The course will begin with the study of free radical reactions and alcohols and then focus on structure elucidation using mass spectrometry.  Visit my LINKS page for good spectroscopy sites. We will then look at conjugated p systems including pericyclic reactions and aromatic (benzene-type) chemistry.  The course will continue with examination of structure, preparation, and reactivity of oxygen- and nitrogen-containing functional groups within molecules.  The approach used will incorporate orbital analysis (structure), electron distribution and flow (mechanism), reactions, and ultimately synthesis.

            The amount of material to be covered is quite large and it will be presented in 15 sessions, thus it is necessary that you keep up with the course lecture to lecture.  This is most readily accomplished by reading the appropriate chapter prior to attending class and doing the assigned problems.  This way, the material covered in class will seem somewhat familiar (what a great feeling) and will hopefully clarify any questions you might have.  Do not hesitate to ask questions in class, after class or during any office hour on line or at La Salle University.  Use of the study guide is helpful, but only if you first attempt the problems on your own. We will follow the attached schedule as close as possible.  If we begin to deviate substantially, a new schedule will be produced.

Examinations, Quizzes & Chapter Coverage:

            Your grade will be determined by your performance on two examinations, three quizzes and a cumulative final examination.  Exams will take place from 7:40-9:10, (regular lecture from 6:30-7:30).  Quizzes will take place from 8:10-9:00 (regular lecture from 6:30-8:00).  The exam and quiz schedule with probable chapter coverage follows:

 

Quiz 1 due February 12 CH 10-11
Exam I  March 4 CH 10-14
Quiz 2 April 1 CH 15,16
Exam II April 22 CH 15-18
Quiz 3 due May 6 CH 19-20

Strategy:

            As is evident by the ambitious schedule and the fact that we have 14 sessions together, it is important that you keep pace with this course.  It is well documented that attempting to cram three weeks of material into a day and a half prior to an exam is an unsuccessful method to studying in this course.  I would advise that you print out the Powerpoint slides prior to coming to class. They will be posted by Tuesday afternoon every week (and likely eartlier). Rewriting one’s notes after each lecture is an effective way to reinforce the lecture material and it typically brings questions to the surface.  In a three-hour class this will be particularly important.  Do all of the suggested problems and practice sheets.  Use your Teaching Assistants as well.  Attendance will not be taken regularly, but consistent lecture attendance is strongly urged and necessary since examinations reflect my emphasis in class (and absences will be noticed).

Our anticipated schedule for the semester is ambitious. Please make a note of the dates of quizzes and exams.

Adobe Acrobat Reader is needed in order to access handouts.

 

WORKSHOP PROBLEM SETS

Workshop Chapter 10 Workshop Chapters 13, 14  
Workshop Chapter 11 Workshop Chapter 15  
Workshop Chapter 12 Workshop Chapter 16  

 

Suggested Problems from Solomons 9th edition, handouts and Powerpoint slides:

 

Chapter 10: Radical Reactions

Free Radical BDE problems / Answers

Chlorination problems

 

Chapters 11and 12: Alcohols / Reactions of Alcohols / Ethers and Epoxides

Gilman and Grignard reactions

Asymmetric dihydroxylation

CH 11 problem set / Answers

Synthesis problems / Answers

Practice syntheses and mechanisms for CH 11 and 12 / answers

ethers and epoxides

epoxide ring-opening

QUIZ 1 Answers

 

Infrared Spectroscopy and Mass Spectrometry

IR analysis tutor from UCLA

IR problems from University of Illinois, Chicago

IR overview with problems excellent site from Michigan State, good explanations and problems

IR and MS search search database for IR or MS spectra by molecular formula; free from the gov.

Mass spectrometry tutorial from the University of Arizona

IR/mass matching problems - mass spec answers

 

Nuclear Magnetic Resonance Spectroscopy

The NMR Phenomenon

NMR powerpoint tutorial L.G. Wade

spin-spin splitting a slide that helps explain the "n+1" rule

Structure Elucidation Workbook very good spectral problems with IR, NMR & mass spec., Notre Dame

answers to "green" combined spectroscopy problems from Notre Dame site (see above)

answers to some yellow combined pectroscopy problems from Notre Dame site

NMR overview site with H-1 and combined H-1/C-13 NMR problems from Central Connecticut State

C-13 NMR tutorial from Wake Forest

H-1 and C-13 problems from Rider College

Spectral problems 10 problems with IR, mass, proton and C-13 NMR, from Carey

7 C4H10O isomers and 7 1H NMR spectra match 'em up

proton and C-13 problems from Franlin & Marshall College

21 IR / proton NMR problems with answers from University of Colorado

Table of proton and C-13 chemical shifts pdf

Chapter 13: Conjugated Systems, Orbital Symmetry

predicting products in unsymmetrical Diels-Alder reactions

Workshop Handout on Diels-Alder Stereochemistry and Regiochemistry

using Lewis acid catalysts with Diels-Alder reactions

Radiosensitizers and Diels Alder reactions

 

Chapter 14: Aromatic Compounds

nomenclature

M.O.'s of benzene, cyclobutadiene

Aromaticity / answers

problems from ch 13-14 / answers

Vioxx Problem try this answer

CH 13,14 Practice / answers

Exam 1 Answers

Chapter 15: Reactions of Aromatic Compounds

E.A.S. worksheet / answers

activation/deactivation & directing effects

synthesis problems / answers

Nucleophilic Aromatic Substitution and Benzyne mechanistic explanations

QUIZ 2 Answers

 

Chapter 16: Ketones and Aldehydes

Classical nomenclature

nucleophilic addition overview

acetal formation / imine & enamine formation

Wittig reaction

CH 15-16 practice problems from old exams answers

more CH 15-16 practice / answers

 

Chapter 22 Carbs and Nucleic Acids 29 slides Basic Carbohydrate Overview

Submit your mnemonic device for aldohexose nomenclature

Glycerol + erythromycin thresh the ribs of an Arab on the xylophone with a lynx.

All altruistically glum mannequins gulp identifying galactic talismans.

Any Ads Granting Me Gold Instigate Greedy Thoughts

All alternative gluttons manage gulping idle gallons as a talent.

GET • RAXL

RIBbed ARAbic XYLophone LYnXes
ALLured ALTos GLUmly MANage GULlible IDOl's GALlant TALes

Exam 2 answers

Chapter 17: Alpha Substitutions and Condensations

overview

acidity alpha to carbonyl

alpha halogenation

alkylation via enolate and enamine

aldol condensation

Problems from 17 and 22 / Answers

 

Chapter 18: Carboxylic Acids

classical nomenclature

well known carboxylic acids

overview

carboxylic acids and acid chlorides

 

Chapter 18: Carboxylic Acid Derivatives

nomenclature some problems answers

nitriles

hydrolysis and Fischer esterification

ethyl acetoacetate and diethyl malonate rxns

interesting acid derivatives fats, nylon, and flavors

GHB fyi

QUIZ 3

Chapter 19: beta-Dicarbonyl Compounds: Enolates and Condensations II

Chapter 20: Amines

Practice problems Here are a few not terribly difficult final exam questions. Test your basics wth these problems. Your final will likely be slightly more thought-provoking. ANSWERS ARE HERE!!

Office Hours:

            I am available by appointment Monday, Wednesday and Friday from 9:30-11:00 and Friday afternoons from 12:00 to 4:00. To ensure my availability, please be sure to make an appointment.   Please take advantage of these times by phone, e-mail or in person to clarify any lecture material (if you are visiting, make sure you have an appointment).  I will respond to every e-mail in a reasonable amount of time. Here is my schedule for the semester.

Grades:

            Your final grade will be determined on your total number of earned points relative to those of your colleagues. Point values are likely to change slightly:

           

            2 Exams                       300 pts             41%

            3 Quizzes                     225 pts             31%

            Final Exam                   200 pts             28%

                                                725 pts           100%