CHEM 313 Chapter Notes -Wohl Degradation, Optical Rotation, Thermodynamic Equilibrium
Document Summary
E) convert the reeves projection into a closed fischer projection. Fill in the fischer projection for l-glucose and draw its cyclic form in a chair projection: draw the fischer projection for beta-l-glucofuranose and its respective haworth configuration. Provide the structure of the product of the following reactions: Show the steps and products of the kiliani-fischer procedure, starting from. Problem 4. alpha-d-mannose has a specific rotation of +29. 3 . beta-d-mannose has a specific rotation of -17. 0 . Over time, a sample of either the alpha or beta anomer in water will have a specific rotation of +14. 5 . Write a mechanism to explain what is happening. Both alpha and beta mannose are undergoing mutarotation (they are equilibrating back and forth between anomers) until a thermodynamic equilibrium is achieved. The +14. 5% is an average optical rotation based on the equilibrium concentrations of alpha and beta. Let x = amount alpha and 1-x equal beta.
