Question

I need question 5 answered

4. The pk, of our product is- 2-3 units lower than the pK, of phenol. Two of seven resonance forms are shown. There are five additional resonance forms that are not shown. Those additional forms have the negative charge on a different atom than the one shown on the structures below. On one of resonance contributors shown, circle the other five atoms in the structure that will have a partial negative charge as a result of the resonance that stabilizes the structure by delocalizing that charge. O 4 と。 CH3 CH3 The product of this reaction is basic enough to be protonated by a dilute HCI solution. This produces a cation. Draw the structure of the protonated form. You will need to consider which atom is protonated. All you have to do is modify the template provided by drawing the bond to the new atom and adding the appropriate formal charge. S. HO CH3 On the IR spectrum of the product, label the peaks that are due to (a) the hydroxyl group, (b) the C-O bond of the ester, and (c) the alkene C-C bond. Don't forget to attach your IR spectrum to this report. 6. Write out a complete curved arrow mechanism for the dehydration step of the reaction. You can use the structures provided for you. 7. HO HO dehydration H+ catalyst (loss of H20) OH CH H3C Pechmann Condensation Report page 2

Answer 1

5 HO CH 13 HO но CH 0 2016 8 9 10 2 13 14 15 6 17 18 19 20 2 22 23 24 25 26 27 28 29 30 The more arguments you win, the less friends you will have. unknown