Question

Homework 7 - Due 10/29/19 at the beginning of class (4 pts) 1) Rank the following alkens in order of decreasing heat of hydrogenation (1 = greatest heatest of hydrogenation: 4 smallest heat of hydrogenation) (0.5 pts) 2) Provide the major product(s) for the following reactions, S, 2 and E2 reaction will only give one major product (the substitution or elimination product), (0.5 pts each) SOCH Pyridine HCl (excess) Heat OH H2SO, H,0 • Å Nas DMF, 25 °C NaOH H,0.55 °C 3) Provide the major elimination product and a mechanism for the following reaction. Please include all intermediates and use arrows to show the movement of electrons (you do not need to show transition states. (1 pt) HO

Answer 1

heator Decreasing order of a Hydrogenation increasing the alkene structure stabelity, repper is the heat of hydrogenation. trams alkene is most stable alkene so it has lowest heat of hydrogenation. steric hinderence is the major factor a here for heal of a hydrogenation w w A troms soola OH py SN2 reaction de sal inverse os configuration Haexcel 011 Cowo Teasyanng meny (Major)

HCl OH 10 H? . loer DMF, 25 Naoh a 160,550 Ez eliminations (more substituted) Mayor product H20 mechamsim it has two ß-t atoms ho | H2O Реши Major