4. Provide a mechanism for each of the following reactions. [9 points each] a) H₂O H+ NH2

5. Add all missing lone pairs in each compound and product. Determine the most acidic proton in the starting material - explain why it is the most acidic. Show a mechanism for the acid-base reaction. (a) OH

4. Draw a mechanism for the reaction below. CH3NH2

Draw a detailed, step-wise mechanism for the reaction shown below. SHOW ALL BOND-FORMING AND BOND-BREAKING STEPS. SHOW ALL INTERMEDIATES. 1) NaOH 2) H3O* H3C H3C HO

Predict the major product of the given reaction and then draw a reasonable mechanism for the product formation using appropriate curved arrow notation. Part 1: OH H2SO4 (aq) view structure Part 2 out of 4 H,0 H,SO4 HSO, HO finish structure . draw structure . H;O*

7. Predict the product and draw a complete curved arrow mechanism for the following reaction. 1) NaOMe 2x 2) HCI, H₂O

1. Take a close look at the following reactions. (a) Draw the product in the box below. (b) Provide the mechanism in the space below the reaction scheme. H₂O, H₂SO4

4.3) Propose a detailed mechanism for the reaction below Br NO₂ NO₂ NaOCH 3 OCH3 NO₂ NO₂

4. For the following, a) predict the product and b) using curved arrows to show electron movement, provide a reasonable mechanism for each reaction. CI CH3OH ??? (-HCI) CI H2N (-HCI) + ??? NH2

What set of reagents would be needed to perform the following reaction? OH ? Either H₂O/H3O* or 1) Hg(OAc)2, H₂O | 2) NaBH4 would work. Any of these techniques would work. Only 1) BH3 | 2) H₂O2, OH would work. Only 1) Hg(OAc)2, H₂O | 2) NaBH4 would work. Only H₂O/H3O+ would work.