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- 3. The following three SNAR transformations follow different mechanisms. Draw an intermediate or transition state for each reaction that relates the correct mechanism. Write a short sentence as to why that is the correct intermediate for the reaction. Reaction 1: Reaction 2: NO2 NO2 NO₂ + NaOMe NO2 + NaOH2 1. aq NaHCO3. 100 C 2. H₂O+ OMe NO2 NO₂ OH ŇO₂ NO2 Reaction 3: CFa Br CF3 8--2 + NaNH2 NH3 NH₂ Intermediate/transition state Intermediate/transition state Intermediate/transition state6. Predict the reactant (starting material) for the reaction and propose a mechanism. NaCN SN2 NaOH E2 CN a Ph PhMECHANISM ACTIVITY Base-Induced Ester Hydrolysis (Saponification) NOC XT Step 1: Nucleophilic addition of hydroxide ion to the ester carbonyl group Ahrs MPR R16 H3C. R Part A (1 of 2) Draw the curved arrows for Step 1 of this mechanism. Arrow-pushing Instructions CH3 H-O: ÖH OR' :Ö H-O: O: H H H H 1x xxx CH3 CH3 Step 1 H3C. CH3 за
- 10. Provide the product and mechanism for the following reactions. HBr NaOH H20 1. NaNH2 `H 2. Br 1. Br2 2. H20 Br NaCN acetone3. Show the complete mechanism for the reaction below. H2N-NH2 • cat. HCIWhat is(are) the major final product(s) formed during the following sequence of reactions? 01 11 V 1.0₂ 2. (CH₂)₂S C₂H₂O 2 identical molecules ||| =PPhy < IV орна
- 4. Fill in the boxes with the reactants, reagents, or products for each reaction. Underneath each reaction, propose a complete mechanism for the transformation. Ph NH₂ B & B & (there is excess of all reagents) 1. CH₂l (excess) 2. Ag₂O 3. heat Br₂ NaOH 1. NaNHz 2. H3O+1. Write the major organic product and the complete reaction mechanism (for a and b only) shown below. NaOH a Br H20 -Br 1. ВН-ТHF 2 КОн, Н2О2Indicate the steps for the transformation HO. HO. H5C6 OH
- Answer the question below the reaction. O4S H3C H3C H3C OH In the first step of the reaction mechanism, which of the following is formed? CH3 H3C CH3 CH3 + Excess NH4Cl OH CH3 (+) -OH2 CH 3 CH3 OH CH3 H₂SO₁ CH3 CI ха +H2OCO2Et 120 °C 1c. CO2Et .CO2Et CO,Et CO,Et CO,Et CO2Et CO,Et a b 1d. Identify the reagent(s) that will promote the following transformation. Br A) HBr, tetrahydrofuran B) HBr, peroxides C) Br2, CCI4 D) Br2, H20 1e. Identify the reagent(s) that will promote the following transformation. Br A) HBr, tetrahydrofuran B) HBr, peroxides C) Br2, CCI4 D) Br2, H2O 1f. Which is the correct product in the following reaction? .COOH COOH .COOH .COOH СООН COOH COOH COOH COOH COOH (A) (B) (C) (D)1-Suggest a mechanism by which the ozone, O3 is being destructed by the presence of oxygen molecule, O2, and the sun light. 2-Methyl chloride, CH3Cl, is another molecule that destructs the ozone layer. Suggest a mechanism for the destruction of ozone by methyl chloride and the sun light.