15.-19. Starting with benzene, match each sequence of reagents (separated by commas) to a major product....
Please help with 21-25 and explain the answers! 21.-25. Starting with benzene, match each reaction sequence to a product on the right. Assume any necessary workup. Answers may be repeated. 21. Br/FeBr, a. b. C. , Br/FeBr, HS(CH),SH/HCI, H/Ni d. 25.Zn/HCI, HNO/H.SO, Br/FeBr, H/Pd, NaNO/HCl/cold, H,PO e. not a.-d.
Are these right? 18.-22. Starting with benzene, what is the major product of each reaction sequence? Answer may be repeated. 18. /AICI3, Cl2/Fecla, H2NNH2/ OH 19. Cl2/Fecla, /AICI b. 20 /AICI 3, HS (CH2)2SH/H", H2/Ni, cl2/Fecl3 21. HNO3/ H2SO4, /AICI 3, H2/Pd, NaNO2/HCI, Cuc 22. /AICI3, Zn/HCI, H2SO4, Cl2/FeCla, H20 e. not a.-d.
17. Use ANY needed reagents to effect the following transformation. (30 points) starting material product List of Reagents -N:C:N- KMnO4, H2SO4 8 00 (CH3),COCOCOC(CH3)3 Ag(NH3)2+, 120 Fe, HCI KMnO4, NaOH, H2O, cold AlCl3 Bra (excess), NaOH (excess), H20 Brz, Fe Br2, H20 Br2, H2O, H3O+ Br2, hy Br2, NaOH (excess), H2O Br2, P Buli CF3CO,H CH;=0 Formaldehyde оо CH3COCCH o CH_CC1, pyridine H2, Lindlar's catalyst H2.Pd/C H2, Pa/C, high pressure H, Raney-Ni HANNH HENNH, KOH, (HOCH2CH2)20, heat H2O H20, H2SO4,...
18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of each compound (4 pts) (30 points total) 30 Unsat. Index = (2C+2-H-X+NY2 = 200 25 e = 2.00 ppm, 4.90 f = 1.27 ppm, 20 720 Compound 18a: C,H,O, singlet, 2H triplet, 3H 127 15 d = 2.66 ppm, a = 7.21 ppm, b = 7.18 ppm, doublet, 2H doublet, 2H C = 4.90...