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CHEM 455

Synthesis and Qualitative Organic Analysis

Chemistry and Biochemistry College of Physical and Mathematical Sciences

Course Description

Laboratory course emphasizing isolation, purification, and characterization of major and minor products from selected syntheses.

When Taught

Fall

Grade Rule

Grade Rule 8: A, B, C, D, E, I (Standard grade rule)

Min

4

Fixed

4

Fixed

2

Fixed

6

Other Prerequisites

Chem 201 or concurrent enrollment

Note

For chemistry and other science majors.

Title

Completion of Reactions

Learning Outcome

Monitor and evaluate the successful completion of reactions using TLC with various solvents and modes, solvent changes and co-spot interpretation.

Title

NMR Theory

Learning Outcome

Demonstrate understanding of NMR theory including magnetic field resonance, radio frequency pulse sequences, shift, splitting, polarization transfer, signal correlation, 2D experiments including homo and heterocorrelation spectroscopy, COSY, HSQC, NOESY, and multiple bond techniques, HMBC, TOCSY

Title

Polarimetry Theory

Learning Outcome

Demonstrate understanding of polarimetry theory including plane polarized light, interaction with chiral compounds, optical rotation and determination of enantiomeric excess.

Title

Design New Reactions to Obtain Desired Products

Learning Outcome

Critically evaluate literature references, in particular experimental reaction details including reagents, starting materials, solvent, temperature, apparatus, stoichiometry, and scale. Adapt and modify known procedures to design and execute new reactions to obtain desired products on small and moderate scales (mg–g).

Title

MS Theory

Learning Outcome

Demonstrate understanding of MS theory including ionization techniques, EI, CI, FAB, ES, MALDI, detection techniques, fragmentation patterns of functional groups, molecular ion, base peak, isotopes, N-rule.

Title

Basic Purification

Learning Outcome

Perform basic purification operations using recrystallization, distillation, chromatography with proper choice of solvents, techniques, mode of operation, etc. based on the properties of the product compound.

Title

Hands on Operation

Learning Outcome

Evaluate purity and identification of structures using hands on operation of NMR, IR, MS, and polarimetry.

Title

Reactions Using Appropriate Systems

Learning Outcome

Work up reactions using the appropriate organic and aqueous system based on polarity and acid/base properties including drying and solvent removal operations.

Title

Write Clear Lab Reports

Learning Outcome

Write clear lab reports including clear experimental detail, operation, characterization, interpretation, evaluation, and conclusions.

Title

Complete Peak Assignment

Learning Outcome

Prepare sample, set up and obtain routine 1D 1H and 13C NMR spectra showing adequate signal locking, shimming, formatting, data processing, spectra interpretation with complete peak assignment.