3. The reaction of furan (1) and maleimide (2) gives two products, called exo and endo (and usually the endo product is the favoured product). i. Write the structures of these two products and label them appropriately. ii. Define briefly, with reference to the two structures drawn, exo and endo in the context of bridged bicyclic compounds. ii. What is the stereochemical relationship between these two products. NH 1 2

3. The reaction of furan (1) and maleimide (2) gives two products, called exo and endo (and usually the endo product is the favoured product). i. Write the structures of these two products and label them appropriately. ii. Define briefly, with reference to the two structures drawn, exo and endo in the context of bridged bicyclic compounds. ii. What is the stereochemical relationship between these two products. NH 1 2

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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5e.
4. Explain the stereochemistry of the following reactions shown below of the products B & C (OR). 1. SO2CI /pyridine HO H 1.SOCI/ether 2. CH30 Na/CH,OH 2. CH;O Na/CH,OH (R)- (S)- (S)- A B 5. Provide a detailed mechanism for the following reaction. Draw the structures of the products. Explain your answer S). HI A B 6. Methylcyclopentanol on treatment with HBr gives 1-bromo-1-methylcyclopentane as a major product. Show a detailed mechanism to explain your answer . S). CH3 H3C Br HBr но- -H2O 2-methylcyclopentanol 1-bromo-1-methylcyclopentane CS Scanned with CamScanner
5. When the diene below is dissolved in THF solvent to which a small amount of H₂SO4 has been added, cyclic products are formed that are isomeric with the reactant. Write a mechanism for the formation of ONE of these cyclic isomers, and include its structure. (In other words, you predict the product structure by going through the mechanism.) Include curved arrows in the mechanism to show bonding changes. yand H₂SO4 THF A cyclic isomer of the reactant
Identify the best conditions to dihydroxylate an alkene to the trans-diol. A) KMnO, NaOH (pH >8), cold B) KMnO, NaOH (pH >8), warm C) mCPBA followed by acidic aqueous workup D) OSO (catalytic), NMO E) 1.OsO, 2. Nalo, 3. Na₂S₂O,, H₂O 4
3. Using the carbon sources provided and any other necessary reagents needed, propose a viable synthesis for the product shown. Your synthesis must include a Diels-Alder reaction. For each step in your synthesis be sure to show the reagents/conditions necessary for that step and also draw the major product expected for each step leading to the product. You will also need to use reactions discussed in previous chapters as well. Carbon Sources Available H₂C=CH2 steps CH₂Br
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Part IIC. Draw the structure of the synthesized product (do not include side or by products) from experiments performed in Chem 272L. How can IR spectroscopy be used to monitor the progress of each of the following reactions (if reaction went to completion and/or check the purity of the final product)? What absorptions would be observed in the IR spectrum? And if IR spectroscopy could not have been used, briefly explain why.
Fill in the blanks in the following SN2 reactions with either the appropriate nucleophile,electrophile, or product and include any stereochemistry where it is relevant.
Please follow directions carefully.
66) Which of the following statements is false? Reactions following Markonikov’s Rule, form the less substituted carbocation. In the acid-catalyzed hydration of alkenes, many times a carbocation rearranges to form a more stable structure. Alkoxides, hydroxide anion, and Grignard reagent, are ALL classified as strong nucleophiles. None of the above.
3 a only please