I need number 2 all parts answered. 2 Answer the following questions regarding t
ID: 691970 • Letter: I
Question
I need number 2 all parts answered. 2 Answer the following questions regarding the IR spectrum of your product a) What peak (give the wavenumber value) corresponds to the carbon-ox ygen double bond stretch? You must give the answer with the correct units b) Does the position of the carbon-oxygen double bond stretch indicate that it is conjugated or nonconjugated? You will need to compare the product IR spectrum to the IR spectrum of the (R)-carvone starting material posted on Blackboard (or elsewbere). c) Regardless of the regiochemistry of the epoxidation reaction, one carbon-carbon double bond should remain in the product. List one peak that provides evidence for the presence the carbon-carbon double bond. You must give the answer with the correct units. Calculate the theoretical yield of your product. The theoretical yield should be quoted as a mass, not a number of moles. Units must be shown on all numbers that need them. Calculations that are done with an incorrect number of significant figures will be counted as incorrect. Your work must be shown. 3. a) b) Calculate the percent yield for your product. This calculation should be done with masses of your product and the theoretical yield, not the number of moles. Calculations that are done with an incorrect number of significant figures will be counted as incorrect.) Your work must be shown. c) Calculate the atom economy for the epoxidation. (Calculations that are done with an incorrect number of significant figures will be counted as incorrect). Your work must be shown. The equation is: Carvone + HOOH product + H2O (the hydroxide is catalytic)Explanation / Answer
2. For the given synthesis,
a. Th peak at 1707 cm-1 corresponds to the C=O stretch.
b. The shift of peak to a lower frequency suggests the C=O group is in conjugation with other double bond in the molecule.
c. the peak at around 1670 cm-1 is due to the C=C double bond, which is present in both reactant and the product present in the above system.