1. Choose the correct option for | [Select] 2. Choose the correct option for [Select] 3. Choose the correct option for III [Select] H- H 1. NaNH2 Br 2. 1Eq.
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- 16) Reactivity of carboxylic acid 4 its derivatives. Determine which reagents are needed to complete traneformationg a) Dsocla 2) NaCl, DMSO b)) Nacl, DMSO c) D HCI, heat d) Dsocla e) ) Socla 2) Na NH3, IH] 2) Na NH3, H20 2) XSCH3 NH2 2) XS NH31. Determine the pre-target compound and the reagents or reaction conditions in the synthesis of the following compounds Ph Ph NaOH Ph A. ? ? +?- Ph CN Br Ph CO2H Br Ph CN CO,H H3PO4 ? OsO4 В. ? + ?- 80° CO2H NaOH но HO. Meli ? кон D. ? H* MEOH сно NaOH ? +? NO2 Ph HNO3 O,N. H2N HNO, F. ? ? H2SO4 H3CO OCH3 H3CO H2SO4 O2N. Sn H;CO OCH3 HCI E.4. Rank the following compounds in decreasing (strongest to weakest) order of basicity. NH₂ O₂N || NH₂ NH₂ B. II > III >> IV E. III >II>I>IV 11 ||| A. I> ||| > || > IV D. IV > III >II>I 5. Predict the product for the following reaction. CN H₂/Ni NH₂ NH₂ A. IB. II C. III D. IV E. I and II IV NH₂ C. IV> | > | > IV CN IV "NH₂
- 17. Mechanism aq NaOH H3O+ HO, 18. Mechanism cat. TSOH HO, MEOH, reflux1. Provide a complete arrow pushing mechanism for the Wittig reaction starting from the salt that is used as the starting material in the reaction. Make sure to account for all byproducts of the reaction and that the relative stereochemistry on your betaine accounts for the trans product formation.2. State the name of each of the following reactions (acid/base, Lewis acid/base, resolution, epimerization) and draw the products of each reaction. a. Name b. Name C. H₂C. Br Name OH OH OH Racemic mixture CI + NH3 1. 2. Crystallization 3. Separation 4. Neutralization Product 1 Container 1 Product 2 Container 2
- a) b) C) HBr CH3CH₂OOCH₂CH3 1. Hg(OAc)2, H₂O 2. NaBH4 1) BH₂ / THF 2) H₂O2 NaOH (aq) coldPredict the major organic product/s for each reaction Ph. A. 'co_Me co_Me В. -CN OLAH C. SOC!2 NH2 D.What is the missing reactant? LDA -78°C [enolate salt] CH OH + THE I. II. III. IV. CH3-Br H-C-oC,Hs Н-С-н CH3OH Select one: А. I B. II C. II D. IV
- 5. Select the product for the following of reaction. [A] Ph CO₂tBu [B] -Ph N₂ Ph .CO₂lBu OtBu Rh₂(OAC)4 [C] 5-1 -CO₂tBu -Ph [D] tBuO₂C -PhWhich of the following will yield identical products of 1,2- and 1,4-addition of HCI? OA. Only I OB. Only II OC. II and III OD. I, II and III || III IV15. What is the product, W, of the following reaction sequence? 1 equiv. I COzH i. excess NaOEt ii. Bri IV 1 equiv. HO₂C. OH Br II IV 17. Predict the product of the following reaction sequence. i. NaOC₂H5 ii. CH3CH₂CH₂Br iii. NaOH iv. H3O*, heat iii H30 heat CO₂H OH ? CO₂H OH Ju qe je OH O I II III V W COOH III 16. What would be the major product of the following reaction sequence? OH a) Ethyl acetoacetate b) Ethyl acetoacetate c) Ethyl acetoacetate IV e) Ethyl hexanoate PCC CH₂Cl₂ 18. 2-Heptanone can be synthesized by which reaction sequence? heat, II NaOEt CH3(CH₂) 3 Br EtOH NaOEt EtOH i. dil.OH heat ii. H30 d) Ethyl acetoacetate CH₂(CH₂);Br_ i. LDA ii. C₂H₂I 22 i. NaOEt, EtOH ii. CH3COCI V III NaOEt EtOH i. dil.OH heat ii. H30 CH3(CH₂)3Br CH₂(CH₂), Br i. dil.OH ii. H30¹ heat, i. dil.OH heat_ ii. H30*