Question #1 Show the expected products and indicate the expected product ratios for the following eliminations...
Help sos 1. Show the expected product(s) of the following reactions. For products containin or cis/trar asymmetric carbon atoms, indicate relative stereochemistry (syn/anti relationships) and/or whether a racemic mixture is produced. (8 pts each) 1. HNO3, H2so4 NO 2. Fe, HCI OCH3 3. NaNO2 aq. HCI 4, CuCN, Δ сно но 1. Br2 H20 2. Fe SO)S b. HO- -H OH s CH2OH 1. SOCI2 2. NH3 H3C 3. Br2 NaOH, H2O 1. KOH 2. PhCH2CH Br 3. NH2NH2 d....
write a major product for each of the following reaction, indicate appropriate stereochemistry .ОН 1. HBr (d) 2. NaOCH3, CH30H, A 3. O3, CH2C12, -78 °C;(CH3)2S erem 1. SOBr2 N (e) OH 2. (CH3)3COK, (CH3)3COH 3. Br2, CCI4 4. x's NaNH2; H2O 5. HgSO4, H2SO4, H20
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O
Part I – Reactions Draw the expected major product(s) or required reagent(s) for each of the following reactions. Part 1 - Reactions (20 marks) Draw the expected major product(s) or required reagent(s) for each of the following reactions. Question Answer 1. MgBr 1. CH3CN 2. H30* 2. OH HT ОН 3. Br PPh3 1. BULI 2. CH20 CI (1 mole) ОН 5. 1. LDA ? (directed aldol condensation) 2. CH3CHO 6. HO H (cat) OH ? (cyclic anhydride) . (-H20)...
5. Identify the major product expected to form at the completion of the following synthetic sequence. O OH SO3, H2SO4 Br2 H2O H3O*-H2O но ОН Br ОН Он Он Br о Он Br но но Но НО но Br SO3H Br Br (A) (B) (C) (D) (E) 6.Which of the following synthetic sequences is expected to yield 2-chloro-4-nitrobenzoic acid in highest yleld? 1. KMnO OH Cla- FeCl HNO3- H2SO heat (A) 2. H30 1. KMnO4 , OH HNO- H2SO Clo-...
1. Give the major product of the following reactions, write N.R. if no reaction happens. Indicate the stereochemistry if necessary: i 1. NaBH, MOH 2. H, H2O 3. conc. H2SO4, heat 1. LiAlH4, THE 2. H, H2O 3. MSCI, Pyr, 0 °C 1. SOCI, EIN -D 2. LAIH, ether 1. Li, hexane 2. i . THE 3. acidic work-up Jone's reagent ОН OH 1. PBT 2. NaCN, THE PH conc. H2SO4 NaCl 0°C conc. HBO OH heat
1. Identify the predominant mono-nitrated product expected to form in the following reaction. HNO3 - H2SO4 ? NO o CH3 O N o NO2 CH₂ CHE (B) (D) 8. Identify the product obtained on completion of the following reaction sequence. Assume that a racemic mixture is generated if the product contains asymmetric centers. Bry, H20 NaOH : NaCN, H2O (1 equivalent) он
Question 29 (4 points) Predict the major product for the following reaction. NaCr0 H2SO4 H20 1) PBrg, Br2 2) H0 OH Br ОН ОН Br
Question 31 (4 points) Predict the major product for the following reaction. ОН Na2Cr207 1) PBr;, Br, H2SO4, H2O 2) H2O OH Br OH بل Br Br O
1.Predict all the products for the following reaction. Which is the major product? Why? + conc. H2SO4 heat OH 2. Give an alcohol that you could use to synthesis each of the following alkenes? din 3.Draw the mechanisms for the following two schemes (two separate mechanisms). Only show the mechanism for the most stable product for each scheme. What is the key difference in the mechanistic steps between these two reactions? ОН ОН conc H2SO4 conc H2SO4 heat heat