CHeM 2140 WS13 Advanced Organic Chemistry Laboratory

 

Recitation/Lecture: Fridays @ 2:00 pm in Schlundt 103.

 

Primary Instructor                              Teaching Assistants:                                                NMR Assistant

             L. Phillip Silverman                            Pete Punthasee        ppxb5@mail.missouri.edu     Eddie Pittman  elpq63@mail.missouri.edu

                                                                       Andrea Cummings  afh8k3@mail.missouri.edu

 

                                                          

Room 123D Chemistry                                                                                             

(573) 882-1401                                      

silvermanlp@missouri.edu                                            

 

Office Hours:  Tuesday Thursday 2:00 – 3:00

                        Monday 1:30 – 2:30

           

 

Class Philosophy and Goals: Welcome to CHEM 2140. This is a serious lab course, unlike any other that you have taken thus far in the Chemistry Department here at the University of Missouri – Columbia. We meet three times a week: twice for lab and once for recitation. All this for 2 credit hours, so the first point I need to make is simple:

NO WHINING!!

I know that this is a lot of work for 2 credits and that the class is hard. I’ve heard it all before and it gets you absolutely zero sympathy points from me; in fact it will have the contrary effect. Chemistry is a discipline as much as an art and I fully intend for this course to be both rigorous and intense. Don’t worry so much about your overall grade; traditionally, this course has resulted in mostly A’s and B’s. C’s can be given out and D’s are not impossible to achieve. Your overall goal needs to be achievement of understanding the basics of multi-step organic synthesis and identification and interpretation of spectra of synthesized target molecules and intermediates. These are hard tasks but achievable ones, if you spend your time wisely and prepare ahead. Unlike other classes, most of the lab work is SOLO, so you can’t lean on your partner. Gaff off the lab and it will most surely blow you away!

 

REQUIRED TEXTS:

A carbonless lab notebook at least 50 pages long. I recommend the 100 page lab notebook.

 

Introduction to Organic Spectroscopy: by Laurence M. Harwood and Timothy D. W. Claridge [Oxford University Press; ISBN: 0-19-855755-8]

 

The other book is a GREAT READ: “Tales of a Shaman's Apprentice: An Ethnobotanist Searches for New Medicines in the Amazon Rain Forest” by Mark J. Plotkin [ISBN: 014012991X ]. This is inspiring stuff about natural products chemistry.

 

A book that might help is “Spectrometric Identification of Organic Compounds” by Robert M. Silverstein and Francis X. Webster Publisher: John Wiley & Sons; 6th edition (November 1997) ISBN: 0471134570. I wouldn’t make it a required text ($$$) but if you are interested in ANYTHING to do with organic chemistry, this is a must-have textbook!

 

Do you HAVE to get these at the bookstore? No. Go on-line from any of a number of retailers, if you desire! That is why the ISBN was included.

 

Weekly recitation: Friday. Attendence will be taken EVERY CLASS.

 

LAB SECTIONS:

We are doing a blended teaching schedule:

Andrea will teach Monday/Tuesday

Pete will teach Wednesday/Thursday

 

The course schedule for CHM 2140 will have each lab section meeting twice a week for each section. Attendance is mandatory for all sections, however if you cannot attend your own section, you may attend the other section providing you have secured permission of the TA’s involved IN ADVANCE. Since these labs build upon each other (precursor A is used to make B which in turn makes C), missing a lab day can severely impact your ability to produce the target compounds in the allotted time.

 

What do I mean by an excused absence? There are 4 different categories of excused absences: 1) medically excused, 2) death of someone close to you, 3) university sponsored event, and, 4) “legally” excused. The definitions follow.

To be medically excused, you SHALL get written verification by a medical doctor stating both the time of visit and the duration of the expected illness. No note, no excuse. If you are not sick enough to go to the Student Health Center, go to lab/recitation. Death of someone close to you isn’t something to use as an excuse unless it is legitimate. Obituaries of people will suffice as an excused absence. If you are part of a University sponsored event, the letter comes automatically from the program office (if you are presenting at a conference, let me know!). Significant time away from lab and recitation can impact your overall grade even though the absences would be excused. “Legally” excused absences will involve subpoenas, court records, traffic tickets, or some other written form of documentation stating that court or being arrested is where you were (bring your bail agreement!). Also, all of the excused absences will need to have a point of contact and a phone number that I can call to verify the claim. I reserve the right to make the final call for all absences from lab and recitation. Short and sweet: unless you are bleeding out of your eyes, show up. I wouldn’t go down the road of “I get three strikes before I am in trouble” philosophy; significant tardiness (more than 15 minutes) can be considered as an unexcused absence.      

    

Some of the lab basics: come prepared to work. This means having good pre-lab preparation: You need to state what the purpose of the experiment is in your own words. You will have in your notebook a set of procedures that should allow you to work without your lab print-outs. Coming to lab without a properly prepared lab notebook or otherwise being unprepared to work will result in points being taken from your final grade: you need to have shoes that cover your toes, lab glasses that shall be worn ALL period shall be brought to each lab meeting. These policies are in keeping with EH&S policies concerning dress and conduct in lab. Also, it is University of Missouri policy that there is no eating or drinking in lab. If you come into lab with a water bottle, stash it in your backpack.

 

Arriving late for lab (totally at the TA’s and my discretion) may result in you not being allowed to attend the lab (3 hour blocks of time are pretty unforgiving!) The TA and the website will give you more information about the type of information you will need to include in a lab report. All observations need to be recorded and your notebook shall be initialed by your TA before you leave the lab.

 

The notebooks you shall use for this class will utilize some type of direct copying, either carbon or carbonless. Additionally, all work shall be your own. If you are getting information from another source, annotate the source! The line can get pretty blurred in lab courses, but you need to know that from Day 1, I expect each person to work solo in this class on all graded assignments with the exception of the chromatography section (groups of 3 or 4 depending upon class enrollment/number of bodies). You will be working on your experiments alone, so it behooves you to be ready for lab.

    

Other policy stuff: If you feel a grade is unfair, you need to take that grade up with the TA who graded the experiment within 2 weeks of receipt of the grade. Past that point, the grade stands. You need to resolve ALL conflicts at the lowest possible level. If you have an issue with the TA, talk to the TA outside of class time. If you can’t get past the issue after talking to the TA off line, come see me together. If you come to me without the TA, I’ll send you back to the TA and we will schedule a time when you both can come in and talk about the problem. The only times you can come to me directly are about issues of “moral turpitude” or lab safety.

 

Communications with the instructor: sending me an email is usually not a problem. However, when I receive email, I am not your “dog”, your “proffie”, or your “bro”. Emails WILL be polite and will use proper grammar, punctuation, and be professional in tone. Emails that do not comply with these simple requirements will be ignored.

 

ADA Compliance:

If you need accommodations because of a disability, if you have emergency medical information to share with me, or if you need special arrangements in case the building must be evacuated, please inform me immediately. Please see me privately after class, or at my office. To request academic accommodations (for example, a notetaker), students must also register with the Office of Disability Services, (http://disabilityservices.missouri.edu), S5 Memorial Union, 882-4696. It is the campus office responsible for reviewing documentation provided by students requesting academic accommodations, and for accommodations planning in cooperation with students and instructors, as needed and consistent with course requirements. For other MU resources for students with disabilities, click on "Disability Resources" on the MU homepage.

 

Academic Integrity:

Academic integrity is fundamental to the activities and principles of a university. All members of the academic community must be confident that each person's work has been responsibly and honorably acquired, developed, and presented. Any effort to gain an advantage not given to all students is dishonest whether or not the effort is successful. The academic community regards breaches of the academic integrity rules as extremely serious matters. Sanctions for such a breach may include academic sanctions from the instructor, including failing the course for any violation, to disciplinary sanctions ranging from probation to expulsion. When in doubt about plagiarism, paraphrasing, quoting, collaboration, or any other form of cheating, consult the course instructor and your TA .

 

This is a topic that I hope I will not have to discuss again this semester. Any incidents of dishonesty with regard to this course (e.g. cheating on an exam, turning in someone else's work as your own, etc.) will result in a failing grade (a "0") on the exam where the cheating takes place. In addition, I will report the incident to the Provosts Office for possible disciplinary action; consequences of such action are severe (read the M-Book for more details!)

 

Intellectual Pluralism

 The University community welcomes intellectual diversity and respects student rights.  Students who have questions or concerns regarding the atmosphere in this class (including respect for diverse opinions) may contact the Departmental Chair or Divisional Director; the Director of the Office of Students Rights and Responsibilities (http://osrr.missouri.edu/) or the MU Equity Office (equity@missouri.edu; http://equity.missouri.edu/)  All students will have the opportunity to submit an anonymous evaluation of the instructor(s) at the end of the course.

 

If you have any questions about academic integrity or intellectual pluralism, please feel free to contact Associate Vice Provost Michael Prewitt (882-1422) who oversees the Office of Student Rights and Responsibilities (http://osrr.missouri.edu/).

 

Grades:

Assignment         Points    percent

Lab 1

50

6.67

Lab 2

50

6.67

Lab 3

50

6.67

Lab 4

50

6.67

Lab 5

50

6.67

Lab 6

50

6.67

Lab 7

50

6.67

Lab 8

100

13.33

Lab 9

100

13.33

Presentations

100

13.33

Final Exam

100

13.33

 

750

100.0

 

A few of the labs from the first part of the course were derived from the website of Dr. Jennifer Muzyka (http://web.centre.edu/muzyka/). I gratefully acknowledge her efforts in adapting these experiments for use in her Organic 341 class. We have made some modifications to the experiments from her website but I would be entirely remiss without acknowledging her efforts for adapting good labs from the sources cited within each experiment. These labs are both useful and challenging!

 

Week

Date

Experiment

Friday lecture topic

1

JAN 22 – JAN 25

None: This is the week for everyone to check out the website and learn about the expectations for the class. Also, recitation is MANDATORY on Jan 25, 2010 and on all Fridays this semester.

JAN 25

INTRODUCTION: Create a reagents table, use MSDS, lab reports, safety rules

MSDS link, Prelab gouge and Reagents table go-by

http://www.hbcpnetbase.com/

2

JAN 28 – FEB 1

Mon/Tues:

LAB CHECK IN: you have to attend, otherwise it is an unexcused absence

Wed/Thur:

SYN 1

Synthesis of DEET

FEB 01

LAB REPORTS: how to do, 1H nmr usage (TA’s present info), what do we mean when we say to characterize the product?

Andrea’s proton spectra show part 1

3

FEB 04 -  FEB 08

Mon/Tues:

SYN 1

Synthesis of DEET

Run the column and submit nmr

Wed/Thur:

SYN 2

Peptide Coupling – READ!

A method will be prepared and available.

2140 Lab 2 Dipeptide writeup

FEB 08

Proton nmr interpretation (read Chapter 4 of Harwood  and Claridge)

1H NMR Estimation

More of how nmr works

Beginning spectra to interpret

4

FEB 11  – FEB 15

Mon/Tues:

SYN 2

Peptide Coupling

Web/Thur:

SYN 3: Anti-convulsant PART 1

NMR peaks

Thiamine condensation for Step 1 Expt 3

FEB 15

NMR: how it works and what we can do with it

http://www.cis.rit.edu/htbooks/nmr/inside.htm

http://www.chem.uni-potsdam.de/tools/index.html

Problems from the Smith Website; Smith workbook

Lesson from Smith for Interpretation

5

FEB 18 – 22

Mon/Tues:

Anti-convulsant PART 2

Wed/Thur:

SYN 3: Anti-convulsant PART 3 (CATCH-UP AND Purification DAY for Dilantin)

FEB 22

Problems from the Smith Website; Smith workbook

 (reread Chapter 4 of Harwood  and Claridge)

Lesson from Smith for Interpretation

 

6

FEB 25 – MAR 01

Mon/Tues:

SYN 4 Sulfanilamide

PART 1

Wed/Thur:

SYN 4: Sulfanilamide PART 2

MAR 01

C13 nmr / DEPT and other techniques

Problems from the Smith Website;

(read Chapter 5 of Harwood  and Claridge)

Chemical shifts for 13C

Interpretation hints

Smith workbook

Lesson for CHM 2140 interpretation 13C nmr.doc

DEPT EXPLANATIONS

Some Carbon Basics

7

MAR 04 – MAR 08

Mon/Tues:

SYN 4 Sulfanilamide

PART 1

Wed/Thur:

SYN 4: Sulfanilamide PART 2

MAR 08

Tougher problems from Smith

Grad school presentation

8

MAR 11 – MAR 15

Mon/Tues:

SYN 5: Lidocaine PART 1**

SAR relationships

Proton estimation for Intermediate for EXPT 4

SYN 6: Vioxx Synthesis

Vioxx Synthetic Scheme

Wed/Thur:

SYN 5: Lidocaine

PART 2

Post lab questions

Proton estimation for Final product for EXPT 4

SYN 6: Vioxx Synthesis

MAR 15

IR  and UV VIS and FGI (functional group identification)

(read Chapters 2 and 3 of Harwood  and Claridge)

Spectroscopy Home

Spin Spin Splitting (what about protons on alkenes)

Another IR link

MORE SPECTROSCOPY PROBLEMS

9

MAR 18 – MAR 22

Mon/Tues:

SYN 7: Competition

Wed/Thur:

SYN 7: Competition

MAR 22

NATURAL PRODUCTS PPT

NAT PRODS LINK 1

By the way, go to the PAPER versions of this journal!!!

QH1.L94 in Ellis.

EXAMPLE ARTICLE

ANOTHER EXAMPLE ARTICLE

10

MAR 23 – MAR 31

SPRING BREAK

11

APR 01 – APR 05

Mon/Tues:

SYN 7: Competition

Wed/Thur:

Catch-up Day for ALL Synthesis

APR 05

CHROMATOGRAPHY: PREP TLC AND COLUMN TECHNIQUES

NOTE: THERE WILL BE RECITATION THIS WEEK!!

TLC link, chromatography link

Phytochemical and Ethnobotanical Databases, Mayapple, mayapple photo 1, mayapple photo 2, Poisonous Plants: Podophyllum peltatum, Why play with something so nasty?

12

APR 08 – APR 12

Mon/Tues:

CHROMATOGRAPHY

PART 1

Experiment 8 procedure

Wed/Thur:

CHROMATOGRAPHY

PART 2

APR 12

SPECTROSCOPY: MASS SPEC:

(read Chapter 6 of Harwood  and Claridge)

GUEST LECTURER FOR TODAY!

Nathan Leigh

Mass Spec. Facility

Proteomics Center

13

APR 15 – APR 19

Mon/Tues:

CHROMATOGRAPHY

PART 3

Wed/Thur:

CHROMATOGRAPHY

PART 4

APR 19

Organic classification tests Useful stuff for unknown identification; acid base separations (don’t do the experimental part: just read for background!!)

Identification of Unknown Organic Compounds go-by

chart 1; chart 2

14

APR 22 – APR 26

Mon/Tues:

UNKNOWN IDENTIFICATION

PART 1

Unknown Identification Tests

Wed/Thur:

UNKNOWN IDENTIFICATION

PART 2

Extraction protocol

APR 26

STUDENT REPORTS:

Chalk talk info sheet

NOTE: LOCATION OF CLASS WILL BE CHEM 125 MAIN CONFERENCE ROOM

This class will run considerably past the 3:00 p.m. (closer to 5:30 p.m. but I’ll have doughnuts/pastry!)

Sample reports from past years’ classes:

Nigranoic Acid        pterosin Z   Clerodane Diterpenoids

Camptothecin

15

APR 29 – MAY 03

Mon/Tues:

check-out and lab clean-up

Wed/Thur:

check-out and lab clean-up

MAY 03

CLASS EXAM (Friday 03 MAY @ 2pm)

Preparing for the lab final for CHEM 2140

16

MAY 03  04

Mon/Tues:

last labs due

 

 

** Used with the permission of the University of Maryland – College Park  Chemistry Department

 

 USEFUL WEBSITES WE WILL USE THROUGHOUT THE SEMESTER

WHEN/WHY WE WILL USE THIS SITE

http://orgchem.chem.uconn.edu/namereact/named.html

good named reaction site

http://www.nd.edu/~smithgrp/structure/workbook.html

vital IDOC site:  HOMEWORK will come from here!

http://www.cis.rit.edu/htbooks/nmr/

nmr

http://bubl.ac.uk/link/c/chemistryeducation.htm

Good general site: lots of links!

http://hazard.com/msds/index.php

GREAT MSDS SITE

http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/cre_index.cgi?lang=eng   -SDBS

searchable spectroscopy site

http://www.chem.wisc.edu/areas/reich/handouts/nmr/NMR-Biblio.htm

stupid amounts of nmr gouge

http://www.sisweb.com/cgi-bin/mass8.pl

mass spectrum generators

http://www.sisweb.com/cgi-bin/mass10.pl

mass spectrum generators

http://www.chem.uky.edu/courses/che532/

IDOC course from KY website

http://www.wfu.edu/~ylwong/nmr/c13/

carbon nmr

http://www.olemiss.edu/depts/ncnpr/researchNCNPR.html

natural products

http://www.liv.ac.uk/Chemistry/Links/reactions.html

name reactions