Draw the structures represented by the following NMR spectra…
Draw the structures represented by the following NMR spectra on paper, and then upload your answers as a PDF file. Partial credit may be given if you show work. (a) A compound with the formula C6H12O2 has the 1H-NMR spectrum below. The “2H” or “3H” above a signal refer to the integration of the signal. You can ignore the coupling constants “J.” Draw the structure of this molecule. (b) A compound with the formula C10H14O has the 1H-NMR spectrum shown below. Draw the structure of this molecule. The multiplicity and integration of each signal, from left to right are: doublet, 2H; doublet, 2H; singlet, 3H; septet, 1H; doublet 6H. (c) The 1H-NMR spectrum of a molecule with the formula C7H14O is attached. Draw the structure of this molecule. Click this link to open the spectrum
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Download and print this file. Write your answers on the printout, or on a tablet, and then scan and upload your work as a PDF file. Otherwise you may copy the questions below and write your answers on paper, but make sure each answer is clearly labeled. This question has parts (a) – (g). Make sure to read each question carefully and answer everything that is asked. Be sure to show the stereochemistry in your structures, if this is important. Note: although Canvas shows this question to be worth 26 points total, it will be graded out of 36 so there will be 10 extra credit points (so the maximum number of points on the exam is 110). (a) Give the major organic product for this reaction: (b) Give the major organic product for this reaction sequence: (c) How would you do this transformation? (d) How would you do this transformation? (e) Give the products of each step of this sequence: (f) Give the major organic product for this reaction: (g) When the alkyl halide A below is added to water, it can react by two different mechanisms, to give either product B or C. Draw both mechanisms, showing all steps and intermediates. You must include all of the curved arrows to show the movement of electrons in each step. Hint: both reactions involve more than one step.
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