Circle the most stable radical intermediate in each of the couples below, and explain your choice (A) (C) T A (B) 2 A and B 18,40 and and HO B B
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- The compound below is treated with N-bromosuccinimide (NBS) in the presence of light. Draw both resonance structures for the radical produced by reaction of the compound with a bromine atom. Assume reaction occurs only at the weakest C-H bond.What is mechanism of ether cleavage Is this cleavage following SN1 or SN2 ? Give your explanation.Of the two molecules below select which molecule would be predicted to react faster via an E2 elimination. (hint: stereoelectronic arguments can help)
- Name the kind of sigmatropic rearrangement that occurs in each of the following reactions. a. Using arrows, show the electron rearrangement that takes place in each reaction.Provide the complete mechanism using Curved Arrow Formalism for the reaction of 1-chloro-1-methylcyclopentane treated with NaOMe in MeOH. If more than one product is formed, which is the major, minor, and very minor product? Is the reaction SN1, SN2, E1, or E2. I appreciate the help on this question.Writing down all the relevant resonant structures and that of the resonance hybrid, propose a mechanism that explains the reason why methyl benzoate is nitrated in the meta position.
- Draw a detailed mechanism for the FeBr3@catalyzed reaction of ethylbenzene with bromine, and show why the sigma complex (and the transition state leading to it) is lower in energy for substitution at the ortho and para positions than it is for substitution at the meta position.Pentene is a most elusive molecule that has never been isolated before. However, the pentalene dianion is well known and very stable. Both compounds are polar. Use all four stipulations of Huckels rule to explain these stabilityIn some nucleophilic substitutions under SN1 conditions, complete racemization does not occur and a small excess of one enantiomer is present. For example, treatment of optically pure 1-bromo-1-phenylpropane with water forms 1- phenylpropan-1-ol. (a) Calculate how much of each enantiomer is present using the given optical rotation data. (b) Whichproduct predominates—the product of inversion or the product of retention of conguration? (c) Suggest an explanation for this phenomenon.
- 3c）Referring to the intermediates you drew in problem below explain in detail why no meta product is obtained in the Friedel-Crafts alkylation of chlorobenzene. Draw all pertinent resonance structures to support your argument.please answer these questiones and explain it Hand-draw a single-headed (fish-hook) curly arrow mechanism for steps 1 to 3. Explain why the free radical formed in step 1 is relatively stable. thank youPlease answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Arrange the following radicals in order of decreasing rate of bromination. Justify your answer.