Submit your answer on Canvas as d assignment by 11:59pm tonight. 1.) Decide which of the four competitive pathways (SN2, E2, SN1, E1) the following reactions are most likely to undergo. Then, show the curved arrow mechanism and predict the structures, including stereochemistry, of all products, labeling major and minor, if applicable. If more than one product can be formed, show the mechanism for the major product. a.) b.) CI Br + NaOH + KI + NaNH, SNZ → major SN1 E1 EZ NH₂ OH Stronger base

Submit your answer on Canvas as d assignment by 11:59pm tonight. 1.) Decide which of the four competitive pathways (SN2, E2, SN1, E1) the following reactions are most likely to undergo. Then, show the curved arrow mechanism and predict the structures, including stereochemistry, of all products, labeling major and minor, if applicable. If more than one product can be formed, show the mechanism for the major product. a.) b.) CI Br + NaOH + KI + NaNH, SNZ → major SN1 E1 EZ NH₂ OH Stronger base

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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4. On the basis of your mechanism for Problem 3(c), answer the following questions: (a) Additions of Brg and ArSCI to [2.2.1]-bicycloheptene give the products shown in Equa- tions 11 and 12, respectively. Give a mechanism for the products of Reaction 11 and explain why only the bromination gives rearrangement products. Br ddybde + Br + Br₂ Br + ARSCI Br CI + SAr Br (11) (12)
Consider the reactions shown below with possible products A and B. For both of the reactions shown, address the following: 1. For each reaction, indicate whether the major product expected for that reaction is A, B, or A and B are produced in nearly equal amounts. EXPLAIN YOUR ANSWER. 2. For each reaction, indicate the primary mechanism by which the major product(s) you indicated in part (a) are produced. Meo RXN 1: MeOH Br A tBuo RXN 2: Br A
7. An experimental reaction was conducted, and gave rise to several products, some of which are shown below. (a) Show mechanistically how each product arose; (2) In the case of products A and B, explain which would be the major product, and why. OCH CH3 CH3CH2OH heat
1. Pick One: Draw one of the two mechanisms shown below. You may draw both for practice. Give the complete, detailed mechanism for the following reaction. Be sure to include an explanation of the region chemistry and stereochemistry. What type of reaction is this? What is the stereochemistry of the product? CH H. H,0 CI
Draw the major product obtained when the following alkyl halide undergoes an E2 reaction. If you expect no reaction to occur, submit the starting material as your answer. Interactive 3D display mode CH3 CI Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default. + L H 2D EXP. CONT. H C
2. For the following transformation (1) propose a reaction mechanism by drawing the pushing arrows. (2) Construct a quantitative accurate reaction energy coordinate diagram. (3) Draw out the transition state for the last step. (Write your work on another page) OH 2. 1. NaOH Br Explain: when you see 1, 2 .... on the arrow, it means, it has that number of reactions to get to the final product. So, for this question, it takes two (2) reactions to get the product. The first reaction, the starting material will react with NaOH, and give you a product of the first reaction. Then this product of the first reaction will undergo the second reaction with butyl bromide and give you the final product. These are two separate reactions!!! Hint: the first reaction gives you a Nucleophile through an acid-base reaction and second reaction is an SN2 reaction.
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Citral is industrially synthesized from the enol ether of 3-methylprop-3-enal and 3,3- dimethylallylic alcohol (the starting material shown below). So right when you thought that all of that pericyclic stuff is just some esoteric nonsense, here they are, sigmatropic rearrangements in real life action. da a) Redraw the structures of the starting material and the intermediate, so that you have an easier time to indicate with curved arrows how the sigmatropic rearrangements (yes, there are two consecutive ones) are proceeding. b) Name the two sigmatropic rearrangements. heat heat الله citral H
Predict the product(s) and provide a full arrow-pushing mechanism for the reaction of4-methyl-1-hexyne with two equivalents of hydrobromic acid. If necessary, label majorand minor products.
Synthesis / Retrosynthetic Analysis 5) Using the carbon containing starting material(s) provided, propose a synthetic scheme for the following target molecule. Provide structures for all intermediates. The carbon atoms in the product must originate from the starting material(s), but you may use as many equivalents of each starting material as you would like, and any reagent/reaction you know. (note: no mechanisms are required).