Draw the mechanism for the reaction between 1-butene and HBr. Then, draw an energy diagram for the same reaction. Be sure to label the axes, AH (or AG) for the reaction, the transition states, and the reactants, intermediates and product.
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- The conversion of (CH3)3CI to (CH3)2C=CH2 can occur by either a onestepor a two-step mechanism, as shown in Equations [1] and [2]. Question: Assume Equation [2] represents an endothermic reaction and that the product of the rate-determining step is higher in energy than thereactants or products. Draw an energy diagram for this two-stepreaction. Label the axes, reactants and products for each step, and theEa and ΔHo for each step. Label ΔHo overall. Draw the structure for bothtransition states.5. Draw the energy diagram for the following reaction in the reaction coordinate drawn below. HCI + H20 –→ H3O+ + Cl In your energy diagram, account for the fact that a) the reaction is very fast b) the reaction is strongly exergonic Clearly label all reactants, products, transition states, intermediates, and their energies.Consider the mechanism for 1,2 and 1,4 addition reactions. If the cation intermediate is the same in energy on the reaction coordinate diagram, how do different products form selectively? Alkene stability dictates the reaction. Reaction conditions control which product is formed. The transition state: once the new bonds start to form, the cations are no longer in resonance and the transition states become different in energy. Activation energy distinguishes the products.
- Reaction coordinate diagrams: Two-step diagram. Label the reactant (R), product (P), intermediate (I"), and transition states (TS; and TS2), plus the axis with appropriate units/labels. 1) Break the diagram up into 2 steps. Which one is the slow step? The fast step? 2) Endothermic or exothermic? Suppose a is added to step one. Sketch the effect of this addition on the diagram. You can identify the intermediates and by remembering: Intermediates are and then Catalysts are added to a reaction (like a reactant), and are at the end. Practice: Identify the reactants, products, intermediate(s), and catalyst(s). Put a star next to the rate-determining step. Step 1 A+B AB (fastest) Step 2 C + AB → ABC Step 3 ABC + D→ ACD + B (fast) diydidentify the Allowry reactions, as substitution, elimination, or addition DrawWelection arrows to show how the in each reactors Circle and identify any reactive bands break & form intermediates of carbon. Ħ Br Br → AH-Br →→ → XB²Consider this reaction: Br CH3OH Br-Br H3CO The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. H. Br + CH;OH Br Intermediate 2 (product) Intermediate 1 In a similar fashion, draw intermediate 1 and intermediate 2 (final product) for the following reaction. OH + Br2 + HBr Br racemic mixture
- Consider the given reaction in which NC−NC− is the nucleophile and CH3CNCH3CN is the solvent. The reactant molecule has a structure with solid and dashed wedge bonds. A solid wedge () is used to show the bond that is above the plane of the paper, and a dashed wedge () is used to show the bond that is behind the plane of the paper. Draw the product of the following reaction:For the reaction can someone please synthesize the given products from the given reactants. Multiple reactions/steps will be needed (the arrows designate the minimum number of steps). Also, for the 1st step (reaction) in each synthesis, can you please draw an energy diagram showing the correct number of hills and valleys for that step’s mechanism?Consider this reaction: Br CH;OH Br-Br H3CO The mechanism proceeds through a first cationic intermediate, intermediate 1. Nucleophilic attack leads to intermediate 2, which goes on to form the final product. In cases that involve a negatively charged nucleophile, the attack of the nucleophile leads directly to the product. Br + CH3OH Br Intermediate 1 Intermediate 2 (product) In a similar fashion, draw intermediate 1 and intermediate 2 (final product) for the following reaction. OH + Br2 + HBr Br racemic mixture
- 10. Draw an energy diagram for the addition of HBr to 1-pentene. Let one curve on your diagram show the formation of 1-bromopentane product and another curve on the same diagram show the formation of 2- bromopentane product. Draw and label the positions for all reactants, intermediates, and products. Which curve has the higher-energy carbocation intermediate? Which curve has the higher-energy first transition state?El E2 Example Reaction Equation Rate Law Energy Diagram Why El or E2? ExplainFor each reaction in question 20, sketch a reaction coordinate energy diagram indicating the starting materials, transition states and any intermediates, if present, in the reaction. Don't worry about the absolute energy of starting materials and products but you can assume that the product is more stable than the starting materials.