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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 stateWhich SN2 reaction will occur most rapidly? (Assume the concentrations and temperatures are all the same.) CH A CH,0 + + CI- B CH,0 CH3 CH,0+ +F CHO CH, Br Br1. An SN2 reaction exhibits second-order kinetics. What happens to the rate of an SN2 reaction under each of the following conditions? iv. [RX] is halved and [Nu:] is doubled. v. [RX] is doubled and [Nu:] is halved.
- 2. A reaction similar to #1 is below, however it reacts at a much slower rate, give 2 reasons why and explain. Br ОН 0 °C4. Rank the following reactions in terms of rate for an SN2 reaction (1 = fastest reaction). Are any of these reactions not possible? Br OH NaOH NaOH OMS NaOH NaOHWhich will undergo carbocation rearrangement? 1 2 O 1 and 3 only O 1 and 2 only 2 only O 3 only
- For the following reaction there are three (3) possible products. Two of the products are expected to be minor and one product is expected to be a major product. Br H₂O Name and draw out the step-by-step mechanisms by which each of the products is formed. Briefly explain why one of the three products is expected to be a major product.Which SN2 reaction will occur most rapidly? (Assume the concentrations and temperatures are all the same.) * CH;0 CH3 CI + CI CH,0 + CH + I CH3 C CH;O¯ + + F CH D CH,O Br + BrWhich of the following reaction coordinate diagrams represents SN1 and E1 reactions? A B C D
- Determine the major thermodynamic and kinetic products in the following reaction. Br₂The rate law for the reaction of HO- with tert-butyl bromide to form an elimination product in 75% ethanol/ 25% water at 30 °C is the sum of the rate laws for the E2 and E1 reactions. What percentage of the reaction takes place by an E2 pathway when [HO-] = 5.0 M? (k2 = 7.1 x 10-5, and k1 = 1.5 x 10-5)Which of the following is most reactive under E2 conditions? Br Br Br Br (A) (B) (C) (D) O Compound B OCompound C Compound A Compound D