4. Propose a reasonable synthetic route for the following transformation. Remember that RSA is always a good way to start. You are encouraged to use a protecting group. Br H Br (+ trans diastereomer)
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- Chemistry Find the most efficient synthetic route for the followinf transformations.1. Which of the following is the strongest nucleophile? Refer to the diagram below with an MeOH, MeSH, etc. 2. Which of the following is true about the stereochemistry of SN1 reaction?a.retention of configuration at the electrophilic centerb.50:50 mixture of retention and inversion of configuration at the electrophilic centerc.inversion of configuration at the electrophilic centerd. slightly more inversion than retention at the electrophilic centerDraw the major organic product of this E1 elimination reaction. Ignore byproducts.
- Draw a detailed mechanism for the chlorination of benzene using Cl2 and FeCl3.1. propose a mechanism for each step of the reported synthetic route, except for the steps marked in redDraw the molecule: Under second-order conditions (strong base/nucleophile), SN2 and E2 reactions may occur simultaneously and compete with each other.Show what products might be expected from the reaction of 2-bromo-3-methylbutane (a moderately hindered 2∘∘ alkyl halide) with sodium ethoxide. Do not worry about sterechemistry inther SN2 product for this problem. Don't forget about stereochemistry.
- Why we need step 3 before step 4? a. Because the nitro group increases the electrophilicity at the ortho positions which is where the bromine is added. b. Because the amine group is a strong ortho, para director which is what controls the regiochemical outcome of this bromination. c. Step 4 is unessesary. The symmetry of compound 3 allows for the bromination to be regioselective and give compound 5. 5. There will be a mixture of products because there is no selectivity for a major product.How does changing the alkyl halide from CH3CH2Br to (CH3)2CHBr affect the rate of an E2 reaction?1. Draw a reasonable arrow-pushing mechanism for the transformation shown along. 2. Identify nucleophiles and electrophiles 3. Name any type of reactions taking place like E2 or E1 4. Account for any regio- or stereoselectivity