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Get Help Now!Question 1. Draw the most contributing resonance structures for the molecules depicted below.
Question 2. Below is the structure of heroin.
a. In the structure given, clearly identify and name all the functional groups present in the molecule of heroin.
b. Classify as R or S the numbered carbons in the structure. (3 marks)
Question 3.
a. Draw the Newman projection for the most stable conformer of the molecule given below, looking through the bond indicated by the arrow.
b. Sketch a qualitative energy diagram for the 360 ? rotation of the bond indicated by the arrow, starting said rotation from the lowest energy conformer. Draw the Newman projections for all the other conformers and indicate in your energy diagram where they lay. (Note: as mentioned in the question, this is just a qualitative plot. There is no need to calculate any gauche interactions it is just a crude comparison between each conformer. Hint: You may want to start by drawing all the conformers, this includes eclipsed conformers as well, and then the energy diagram).
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