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QUESTION 18 What reagents can be used in this synthesis: OH OA. 1) LiAlH4. 2) H2SO4....
1. (12 pts) Fill in the boxes over each arrow with the letter that corresponds to the reagents needed to perform each step of the multistep sequence shown below. Reagents may be used more than once, or not all. Pay close attention to the numbered carbons in the starting material, and be sure that your answer accounts for the position of these carbons in the final product. 1 3 3 3 2 2 MCPBA CF3SO3H A) HOCH3, DCC, DMAP E)...
Choose the reagents used in the following synthesis? -OH -OH ON HON A) 1. NaBH4-THF. 2. H30+ B) 1. Mg/ether 2. dry CO2. 3. H30+ C) 1. LiAlH4-THE 2. H30+ D) 1. Hot KMnO4.2. H30+ E) 1. LiAIH[O(CH3)313-THF 2. H30+
COOH COOH OH OH Select reagents from the table to perform this synthesis; only one reagent is required for each step. If the synthesis has fewer than 4 steps, choose (none) for the unneeded steps. Reagents a. CH3CI, AICI: b. Bre, FeBrz c. NaOH; then CO2, H2O; then H307 d. KMnO4, H* e. Cl2, FeCl3 f. NaOH, H20; then SO2(OCH3)2 g. Cl2 h. HNO3, H2SO4 Step 1: Step 2: Step 3: Step 4:
Which starting material would best accomplish this transformation? 1. SOCI2 2. CH3NH2 3. LiAlH4 4. H30* Н OH Br Which is the best starting material for the following reaction? CH3CH2NH2 ? pyridine HN o о NH2 С- CI OH Which are the best reagents for the following transformation? OCH3 core O 1. (CH3)2CHMgBr 2. H30+ 1. NaOH, heat 2. (CH3)2CHCH=PPh3 O 1. LiAlH4 2. TosCl, pyridine 3. (CH3)2CHCH Br O 1. DIBAL 2. (CH3)2CHCH=PPh3 What is the major product in...
Which reagents will convert the alkyne shown into an aldehyde? OA. H2SO4, H20, HgSO4 B. 1. BH3-THF 2. H2O2, OH- C. 1. H2SO4, H20 2. PCC, CH2Cl2 D. 1. Hg(OAC)2, H20 2. NaBH4, OH What reagents would use to carry out this synthesis? Br 1) n-PrCOCI, AICI: A. 2) Br2, FeBr3 3) NH2NH2, KOH, A 1) n-PrCOCI, AICI: B. 2) NH2NH2, KOH, A 3) Br2, FeBr3 1) Br2, FeBr3 OC. 2) n-BuCOCI, AICI: 3) NH2NH2, KOH, A 1) n-BuCI, AICI:...
Using the reagents listed below, propose a synthesis of the target compound starting from benzene. Assume all reactions are appropriately worked up and that mixture of constitutional isomers can be separated. CI NH2 A. Cl/FeCl3 B. HNO3/H2SO4 C. CH3COCI/AICI: D. NaNO2/HCI E. HC1/Cuci F. KCN/CuCN G. H3PO2 H. H2O/heat I. H Cr04 J. 1)LiAlH4 2)H20 K. H/Ni L. 1) Mg 2)CO2 3)H30 M. CH3OH/H30+ N. (CH3)2SO4 NaOH O. CH3OH SOCI Q. HCI R. NaN3
What reagents will accomplish the following transformation? OA CH3CH2CH2CH2CI, AICI3 1. CICOCH2CH2CH3, AICI3 2. Zn(Hg), HCI Oo 1. cice 1. CICOCH2CH2CH3, AICI3 2.LiAlH4 001. Br2, FeBr3 2. CH3CH2CH2CH2MgBr What is the main product expected in the following condensation reaction? B NaOH, heat 20
Question 4 (4 points) What is the final, major product of the synthesis below? CH3OH 1) O3, CH2Cl2, -78 °C 2) H202 NaOCH HOCH ?. H2SO4 (cat.) CH3 Question 5 (4 points) Predict the product(s) of the following Diels-Alder reaction below. - ? COOCH3 + enantiomer COOCH3 N NCOOCH COOCH N-COOCH N-COOCH, Question 6 (4 points) What is the correct set of reagents for the synthesis of the compound at right with the starting diene at left? H₂N. NH2 H...
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,...
1. Which reagent could be used in a Williamson Synthesis of cyclohexyl methyl ether? H2SO4, NaCl, H2O, or NaH ----------------------- 2. Which carboxylic acid is the most acidic? --------------------- 3. A reaction that would give n-hexyllithium is: CH3CH2CH2CH2CH2Br + 2Li CH3CH2CH2CH2OH + Li CH3CH2CH2CH3 + Li CH3CH2CH2CH2Br + LiBr CH3CH2CH2CH3 = CH3Li ---------------------- 4. Starting with p-bromoanisole, what sequence of reactions will produce p-methylanisole? 1. CH3l 2. Mg, ether 1. Mg, ether 2. CH3l 1. Br2, AlBr3 2. Mg, ether...