нс Br СН,ОН HC CH a. Write the rate law for this reaction. How does this...
2. Show the mechanism and product or products for an E2 reaction. (Mechanism 9.5 in your text walks you through this example). H3CX -CH3 CH CH OH н В a. What is the rate law for an E2 elimination reaction? How does it compare to the rate law for an S2 reaction? b. Do you think that both E2 and S2 reactions will have similar reaction energy diagrams? Why or why not?
20. Arrange the following molecules based on their reactivity for SN1 mechanism (the most reactive to the least reactive) [4pts] Br Br CH3Br Br 21. Considering the SN1, SN2, E1, and E2 mechanisms, the energy diagram shown below corresponds to [4Pts] a. only the SN1 mechanism b. only the E1 mechanism c. both the SN2 and E2 mechanisms d. only the SN2 mechanism. e. only the E2 mechanism f. both the SN1 and El mechanisms energy rxn coordinate 22. If...
Predict the most likely reaction mechanism (SN1, SN2, E1, E2) and draw all products. Nato=CH₂ E2 ran Br major 2. Draw complete mechanism with arrows for the SN1/E1 mechanism. Check for carbocation rearrangements. CH3 SMI 애 + H₂O7
3. (continued) For each reaction, draw the structure of the major product(s) including stereochemistry where appropriate. Fill in the box below each arrow with the mechanism(s) that will be followed (SN1/E1, SN2, or E2). For SN1/E1 reactions, draw products for both. g) Сн,сн,он h) CH2O- Na CH3OH i) Me. Br A Eto Nat Me
5. For the following reaction: a) draw the substitution product. Br. но CH, b) Draw the full mechanism of the reaction above, showing an SN2 pathway. Include all relevant electrons and curved arrows showing electron movement, AND draw the transition state. c) Draw the full mechanism of the reaction above, showing an Sn1 pathway. Include all relevant electrons and curved arrows showing electron movement, AND all intermediates in the reaction. d) Draw the energy diagrams of the Sw2 pathway and...
b) CH, CH2 CH CH Br + SH — CHZ CH3 CH, CH, CH, Br + SH" — c) (polar protic solvents) CH, Br + (CH3)3N CH, Br + (CH3)3P - — d) CH, I + CN- - DMF CHZI + CNC CH3CH20H e) CH I + OH- - CHZI + CH, CO2- (6) 14. Place 1º, 2º, 3º and Methyl carbocations in order from least stable to most stable. What factor(s) account for the stability of the most stable...
Which of the following is true for reactions A, B, and C? 8. CH3CH2CH,+ Br CH,CH2CH2 + HBr CH CH2CH, + Br CH CH CH3 + HBr CH CH:CH; + Cl CH,CH-СH, + HCI A C a. Reaction A has the lowest activation energy b. Reaction B is the fastest reaction c. Reaction C has the lowest activation energy d. Reaction C is the slowest reaction 9. Which of the following statements is false? a. The rates of Sy1 reactions...
1. Classify each reaction by type. +Br a. b. сH,CH,сHсH сн, Cн,CH3CHCHсн, он c. 2. Draw an energy diagram for a two- step reaction where the first step is endothermic, second is exothermic and overall is endothermic. The first step is rate limiting. Label reactants, products and intermediates 3. The treatment of t-butyl alcohol with HCl gives t-butyl chloride as shown below. When the [HCI] doubles the rate doubles. When the [alcohol] triples the rate is tripled. Write a rate...
16. Give the major product that you would expect to be formed in each of the following reactions. If you think there is no reaction write NR after the arrow. In each case give the mechanism (SN1, SN2, E1 or E2) by which the product is formed. Also indicate the correct stereochemistry when applicable. Both product and the mechanism should be correct to get credit. No partial credit. Nal -BuOK Acetone t-Buo NaSH DMF Br, H NaOMe DMSO MeOH,rt t-BuOH...
stick to the guidelines: -in individual steps, state in general the preconditions for the occurrence of the mechanism that is stated (why SN2 and not SN1,E1,E2 etc.) - if it is possible to give a review of other possible directions at the beginning of the reaction, whereby other by-products are formed, comment on possible competitive reactions - in the case of resonant structures, they should be drawn and commented on - comment on the stability of carbocations 1.)explain the mechanism...