3. Sometimes certain reactions that we have leaned can be morphed into processes that produce very usefully functionalized products. Provide a mechanism for the following transformation. NPh NaOMe OMe OMe Меон Meo Meo
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- The following transformation can be accomplished by reactions we have studied in this chapter and Chapter 20. Name the type of reaction used in each step.Propose a plausible mechanism for the following transformation and justify the stereochemical outcome (J. Org. Chem. 1999, 64. 4617-4626): CO₂Me Heat MeOH MeO ° CO₂Me Step 1 Add any remaining curved arrow(s) to draw the first step of the mechanism. H₁₂C H.C ་་་་ H₂C O-CH3 Edit Drawing CH₂Consider disconnecting the following molecule at either bond a, bond b, or bond c. Which of the following answers gives a set of logical synthons that can be converted easily to synthetic equivalents for each disconnection? OMe A OMe OMe OMe OH он OMe OMe OMe OH es/34667/quizzes/36891/take OMe OMe OMe OMe OMe OMe OB OC
- 6. A synthesis of a molecule being explored as an antidepressant drug (J. Org. Chem 2012) utilized the synthetic step shown below. Propose a plausible mechanism for this transformation. AICI3 H2C=CH2 Br Br6. A synthesis of a molecule being explored as an antidepressant drug (J. Org. Chem 2012) utilized the synthetic step shown below. Propose a plausible mechanism for this transformation. AICI3 H,C=CH, Br BrH8. Give mechanisms for BOTH of the following transformations.
- 2) reaction sequences to carry out those transformations. Draw the expected product of each step proposed. Substantial partial credit can be obtained for incomplete or incorrect answers. You may present your solutions on the following blank page if you need the the following reaction transformations, and propose room. H3C CH, H3C CH3 of HN- -NH HO,C Co,H но H,C CH3 CEN OCH3 OCH33. Show the reaction mechanism for the following multistep transformations. Show all reagents and the intermediate structures. a) Но OH fromComplete the reaction schemes below provinding the reagents required to achieve transformation. Note that more than one step may be required.
- 2. Given the following sequence of reactions, draw the structure of products A and B and write a detailed reaction mechanism that explains their formation. H2N H30* A B 3. Write a detailed reaction mechanism for the following transformation. Upload your answer as an attachment. OEt OEt OE3. Propose a synthesis for each product from the respective reactant, which goes by way of a benzyne intermediate. If the specified product is the only product which is formed, indicate that. If the specified product is not the only product formed, draw the structure(s) of any other isomers formed (but choose a route which forms only the desired product, if possible). CF3 НО CF3 H,N CH3 CH3 CH3For the reaction shown, the major products form via the A) SN1 B) SN2 C) E1 D) E2 H₂, Br CH3CH₂OLi ©2017 ProtonGuru.com E) Mixture of E1 and E2 F) Mixture of S1 and SN2 G) Mixture of Sn2 and E2 H) Mixture of S1 and E1 1) No reaction pathway(s).