4. Draw the chair conformation of the transition state of the given reaction and predict the major diastereoisomer after its aqueous workup. or 2. 1. LDA 요 H
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- Which of the given compounds would be expected to react the fastest by E2 mechanism? H3C, CI CH3 H3C/,, C/. CH3 H3C,, CI CH3 CH3 CH3 C/.Based on the structure of the transition state for this reaction, sort the following items based on whether they will increase or decrease the rate of the SN2 reaction. Changes (5 items) (Drag and drop into the appropriate area below) Effect on Rate No more items Increase Use (CH3)30 instead of CH3O¯ change Decrease branch adjacent to I CH3CH2 to CH3 CH3OH as solvent acetone as solventG 5% Carbocation Rearrangements 7) Draw the 5 MOST LIKELY carbocation rearrangements of the following intermediate. Bonus: Put an X next to the least likely structure and briefly explain why. alk of
- Draw the transition state for each reaction.To preview image click here & 1. Choose the correct chair conformation of the cyclohexane that can undergo E2 elimination [Select] 2. Choose the correct transition state for E2 elimination using NaOtBu as the base [Select] 3. Choose the correct elimination product [Select] 4. State whether a solution of the product would be optically active or not [Select] D 1. E2 Chair t-Bu Br t-Bu t-Bu A 2. E2 Transition State A H 3. E2 Product 1-Bu A Et O-1-Bu Et Br O-t-Bu H LITTE Et t-Bu e Br B Br NaOtBu t-Bu t-Bu t-Bu B g Br B Et 1-Bu с 1-Bu Et C Br H O-1-But Br C t-Bu D Et 1-Bu O Br 1-Bu H Et D O-1-Bu Br # OThis energy diagram indicates the presence of more than 1 transition state. Show all these transition states in the diagram.
- What reagents are appropriate to carry out the conversion shown? - OH LOM 1. mCPBA; 2. CH3MgBr; 3. H₂O O 1. CH3MgBr; 2. H₂O O 1. mCPBA; 2. H₂O O mCPBA + enantiomerRank the following intermediates in order of increasing stability.20. Draw a detailed free energy diagram for the following SN1 reaction. Include and label the overall reactants, the overall products, the intermediate(s), the axis, and the transition state(s). Br ū CI SN1
- Use the following reaction coordinate diagram to answer the following four questio Consider only the forward reaction. a. Which step is the fastest? b. Which step is the slowest? c. Which step is the most exergonic? d. Which compound will the first transition state appear most like? Free Energy Progress of rxn D EWhat sequence of reagents would best achieve the transformation shown belon? Hr O 1) Br, FeBr 2) Fe, HCl 3) HNO, H SO, 1) Br,, FeBr, 2) HNO, H. SO,3) Fe, HCI 1) HNO,, H So, 2) Fe, HC1 3) Br,, FeBr, 1) HNO, H SO, 2) Br,, FeBr, 3) Fe, HCIDetermine the mechanism of nucleophilic substitution of each reaction and draw the products, including stereochemistr CH₂CH3 CI Br + CN d. + CH3COOH a. acetone + -OCH3 e. DMF f. b. C. ||||| a ||||| Br H Br CH2CH2CH3 + CH3OH DMSO H CH3 CI Br + OCH₂CH3 + CH3CH₂OH
