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- Which 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 BrRank the following starting materials in order of increasing rate of reaction (slowest to fastest) in an SN1 reaction. (Tos = tosylate): Br LOTOS OH 1 2 3 https://ibb.co/4JXsG1je O 1< 2 < 3 O 2 < 3 < 1 O 3<1< 2 O 1<3< 2 O 2<1<3OH OH ∞∞ BF3 Et₂O This reaction takes place via a pinacol rerrangement. Please, draw curved arrows to show the movement of electrons in this SPECIFIC step of the reaction mechanism. +BF3 HO: :OH OH (BF3OH)
- 6. Predict the reactant (starting material) for the reaction and propose a mechanism. NaCN SN2 NaOH E2 CN a Ph PhA set of three nucleophilic displacement reactions is shown below: - Br -Br -Br "CHз Hзс CHз C В A NaCN CH-он SN2 reaction Which reaction (A, B, or C) proceeds the fastest? Which reaction (A, B, or C) proceeds the slowest?What is the expected major product of this reaction? OH H₂N I H₂N H₂N 85% H3PO4, A H₂N ||| ? H₂N IV
- 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.Explain how you can tell from the energy diagram that the reaction with the catalyst in Fig. 8.4 isfaster than the reaction without the catalyst.Predict each product for the following multistep reaction. If ortho/para products are both formed, use the para product in the next reaction. HNO3 A Cl2 Zn B NANO2 C CUCN H20 E F H2SO4 HCI HCI OH
- H;C Which reaction is most likely to form this compound? CH,CH,CH, LOH NaOH A Br Na ОН В H3C OH OH Na H3C C Br HO NaOH H3CThe reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Br HBr Br ether Product A Product B Product would have a higher energy transition state for the formation of the intermediate leading to it. O A O B O Both products would have the same transition state.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 state