ORGANIC CHEMISTRY CH 225-FALL 2004 LECTURE - MWF 11:00 – 11:50 CRAWFORD HALL 207 LAB – MW –2:00 – 4:50, T 9:00-11:50 CRAWFORD HALL 335 Instructor: Dr. Judy Westrick Office: Crawford Hall 318 ex. 2165 E-mail: jwestrick@lssu.edu Office Hours: 9:00-9:50 M, 1:00-1:50 MTWF and by appointment Required Textbooks and Class Materials: McMurry, Organic Chemistry, Lehman Operational Organic Chemistry 1 st Edition, Molecular Model Kit for Organic Chemistry State Council of State Science Supervisors: http://www.csss-science.org/safety.shtml http://www.csss-science.org/downloads/scisafe.pdf This class is an introduction to organic chemistry. The objectives of this class are to master fundamental organic chemistry concepts. Chapter 1 -Review definitions – atom, covalent bonds, polar bonds, electron configuration, wavefunction, valence electrons. -Construct Lewis Structures, bonding and nonbonding electrons. -Valence bond theory, sigma bonds and pi bonds. -Hybridization of s and p orbitals. -Molecular Orbital Theory, bonding MO and antibonding MO. Chapter 2 -Review the electronegativity trend using the Periodic Table. -Predict polar covalent bonds, dipole moments, and formal charges. - Understand the concept of resonance forms, rank the importance of various resonance forms, and draw each of the resonance form. -Review Bronsted-Lowry acid/base chemistry; predict acid-base reactions from pKa values. -Lewis acid/base chemistry. -Drawing chemical structures. Chapter 3 -Overview on classification by functional groups; carbon-carbon multiple bonds, carbon singly bonded to an electronegative atom, carbonyl groups -Define and identify constitutional isomers. -Name alkanes and cycloalkanes. -Understand the basic physical and chemical properties of alkanes and cycloalkanes. Chapter 4 -Understand how different conformational isomers have different energies. Predict high and low energies by using energy cost such as torsional, steric, and angle strains. -Special attention will be spent on the conformation of cyclohexane. Predicting most stable conformation by using the torsional and steric strains. -Overview on conformational polycylic molecules. Chapter 5 -Overview of basic organic reactions, addition, elimination, substitution, and rearrangement reactions. -Define reaction mechanism and the types of bond cleavage. -Overview on radical reactions and its steps, initiation, propagation, and termination. -Overview on polar reactions and be able to predict the nucleophile and electrophile -Chemical reactions can be described through equilibria, rates and energy changes. Equilibria, kinetic and bond dissociation equations will be reviewed. Interpreting and creating energy diagrams. Chapter 6 -Structure and reactivity of alkenes will be discussed. Review basic sp2 hybridization. -Calculating a molecules degree of unsaturation. -Learn the alkene nomenclature including cis/trans and E/Z designation of isomers. -Predict the stabilities of substituted alkanes. -The mechanism of electrophilic additions of HX to alkenes will be review. This reaction is regiospecific and uses Markovnikov’s Rule. Hammond postulate and carbocation rearrangement also be introduced at this time. Chapter 7 -Study the alkene reactions. Use concepts such as molecular geometry and polarity to predict reaction products. -Alkene-forming elimination reaction – dehydrohalogenation and dehydrations -Study the alkene addition reactions. This will include basic reactions such as addition of halogens, halohydrin formation, oxymercuration, hydroboration, carbenes -Learn the reaction mechanism for reduction, oxidation, cleavage of alkenes. -Learn the reaction mechanism for the addition of radicals to alkenes. Chapter 8 -Review the structure of alkynes. -Learn how to name alkynes. -Study the reaction mechanism of the elimination of dihalides to make alkynes. -Study the alkene reactions such as the addition of HX and X2, hydration, reduction, and oxidative cleavage. -Use acid/base chemistry to form the acetylide anion for alkylation. -Introduction to synthesis. This is a great way to reinforce all of the chemical reactions you have learned. Chapter 9 -Stereochemistry is the study of handedness. Define enatiomers, chirality and optical activity. -Learn how to assign chiral center the proper rotational configuration. R or S instead of right or -left, respectively. Chapter 10 -Review how to name alkyl halides. -Use periodic trends to predict bond length, strength, and dipole-moment. -Review, electrophic addition reactions and radial addition of halogens, and apply the Hammond postulate to predict reaction rates and product yield. -Determine if an organic reaction is oxidation, reduction or neither. Chapter 11 -Able to predict if a nucleophilic substation is (Sn2, Sn1, E2 or E1). In order to determine which mechanism, the student must be able to evaluate the steric effects of the alkyl halide, strength of the nucleophile (nucleophilicity), the readiness of the leaving group, and solvent charactersics. -Must be able to apply Zaitsev’s Rule to elimination reactions. -Predict products the stereochemistry of a nucleophilic type reaction. Chapter 12 and 13 -Known what mass, infra red (IR), Nuclear Magnetic Spectroscopy (NMR) spectrometries measure and the basic concepts which they work. -Interpret spectra. Class Schedule Dates Aug 30, Sept 1 1. Structure and Bonding Sept 3, 8 2. Polar Bonds and Their Consequences Sept 10, 13, 15 3. Organic Compounds: Alkanes and Cycloalkanes Sept 17, 20, 22 4. Stereochemistry of Alkanes and Cycloalkanes Sept 24 Exam 1, 2, and 3 Sept 27, 29, Oct 1 5. Overview of Organic Reactions Oct 4, 6, 8 6. Alkenes: Structure and Reactivity Oct 11, 13, 15 7. Alkenes: Reactions and Synthesis Oct 20 Exam II Chapters 4, 5 and 6 Oct 18, 22, 25 8. Alkynes: Introduction to Organic Synthesis Oct 27, 29, Nov 1,3 9. Stereochemistry Nov 5, 8 10. Alkyl Halides Nov 15 Exam III Chapters 7, 8, 9,10 Nov 10, 12, 17, 19 11. Reactions of Alkyl Halides: Nucleophilic Substitution and Eliminations Nov 22, 29 12. Structure Determination: Mass Spectroscopy and Infrared Spectroscopy Dec 3, 6, 8 13. Structure Determination: NMR Dec 1 Exam V 11, 12 Monday, Dec 13, 2003 10 – 12 Final Exam All make up exams will be oral. TENTATIVE LABORATORY SCHEDULE Important: You must come to your scheduled lab period during the week of Aug 30th or notify me if you will be absent. Otherwise you may be removed from the course. Exercises to be completed will be assigned or provided on the handouts. All labs are worth 10 points. Weeks 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Experiment Safety and equipment review NO LABS Food Preservative Model Worksheet Separating "Panacetin" Identifying "Panacetin" Component Salicylic Acid Stereochemistry Model Worksheet Synthetic Banana Oil Camphor Lycopene from Tomato Paste Constituent of Clove Oil Preparation and Distillation of Cyclohexene Clean Lab and Final Exam To Turn In Report week benzoic acid Worksheet Aspirin Unknown salicylic acid Worksheet isopentyl acetate Camphor lycopene solution clove oil IR and cyclohexene 2 4 4 6 7 8 8 10 11 12 13 14 Lab Rules and Safety. WEAR YOUR SAFETY GOGGLES IN THE LAB AT ALL TIMES. You should also wear your gloves and aprons while handling chemicals. You must comply with the safety rules posted in the lab; repeated violation of these rules may result in expulsion from the course with a grade of F. Do not carry out any unassigned experiment or project without written authorization by the instructor. Laboratory work is to be performed during scheduled lab periods only (see the instructor for information about making up labs). The prep room and chemical storage area are off limits to students, except authorized laboratory assistants. Preparations. YOU MUST TURN IN THE SPECIFIED PRODUCT FROM EACH EXPERIMENT. Each product listed in the lab schedule should be submitted to the instructor on or before the due date for the experiment. Lab Reports. Turn in each lab report on the form provided on or before the due date attaches any required graphs or spectra. Reports must include answers to the assigned exercises. Late reports are penalized 3 points if turned in within a week after the due date, 10 points thereafter. Point System # Type Points Total Points 4 Hour exams Quizzes, Assignments Final 125 500 100 200 Lab Lab Final Week of Dec 15 13 130 70 Total 1000 1 Lab 13 200 Straight grading scale: 90% and higher A, 80%-89% B, 70%- 79% C, 60% - 69% D, below 60% F Disability Services and Accommodations for Students. In compliance with Lake Superior State University policy and equal access laws, disability-related accommodations or services are available. Students who desire such services are to meet with the professor in a timely manner, preferably the first week of class, to discuss their disability-related needs. Students will not receive services until they register with the Resource Center for Students with Disabilities (RCSD). Proper registration will enable the RCSD to verify the disability and determine reasonable academic accommodations. RCSD is located in South Hall Office 206. The telephone number is (906) 635-2454. Academic Misconduct: Scholastic misconduct is cause for a failing grade, and I reserve the right to place a letter about the incident in the student’s permanent file in the Office of Academic Affairs. Scholastic dishonesty includes, but is not limited to, cheating on assignments or examinations, plagiarizing, misrepresenting as your own work any part of work done by another, or interfering with another student’s work. Finally, this syllabus is my best estimate of the topics we will cover. I reserve the right to modify this syllabus as I see fit during the course of the semester.