5. Which of the following bases will completely convert 1,4-cyclohexanedione into an enolate? A. B. C....
Which of the following bases works best to quantitatively convert ethyl acetate to its enolate? base OEt OEI a) NaOET b) NaOH c) CHLI d) LDA Which has the highest percentage of enol in a keto-enol equilibrium?
6. Which of the following alkyl halides would afford the indicated product upon reaction with sodium ethoxide? Khat K A. B. II C. III D. IV 7. Predict the product of the following reaction: H2Cro4 (excess) de bygge ! A.1 B. II C. III D. IV E. V 8. Predict the product for the following reaction: HOOH NH H,O* 38 5 5 AT B. 11 C. III D. IV 9. Predict the product for the following reaction: CH,CH,OH (excess) H2SO4...
HW 22: Enolates 1. Provide a detailed, stepwise mechanism for the base-catalyzed enolization (keto enol tautomerism) of acetaldehyde. 2. Provide the major organic product of the folowing reaction. 3. Provide the major organic product of the following reaction LDA 4. Which of the following ketones will give a positive iodoform test? A) 4-heptanone D) cyclohexanone B) 3-hexanone C)2-hexanone 5. Provide the major organic product of the following reaction. 6. Provide the structure of the major organic product which results when...
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
In order to synthesize 5-methyl-2-hexanone via acetoacetic ester synthesis, which of the following compounds should be reacted with the enolate ion generated by the reaction of ethylacetoacetate with sodium ethoxide? A) 2-methylpropanal B) isobutyl bromide C) 1-bromo-3-methylbutane D) 2-methyl-1-propanol E) none of the above Correct answer is B. Please explain why
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ontributor of the following 5 Which is the correct resonance conth compound? D) None of the Above соон Which is the strongest acid? А) сносн,он NO, B) CH. COOH c) CI-CH.COOH E) Both C and D @ which is the product of 1,4- addition of the following reaction? CH=CH-CH=CH, HBr , ? A) CH₃-CH-CH=CH2 () CH₃ -CH=CH-CHBr. B) CH. Br-CH-CH=CH D) All of the Above which is the major product of the following reaction? E) No...
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Which reagent is necessary for this transformation? for Joomom o sodium ethoxide potassium hydroxide ethanol ethyl bromide Question 11 4 pts Predict the starting material for this reaction. H.S OSH (18,3S)-3-methylcyclopentane-1-thiol (15,3S)-1-lodo-3-methylcyclopentane (1R 3R)-1-iodo-3-methylcyclopentane (18.35)-1-lodo-3-methylcyclopentane (15,3R) - 1-iodo-3-methylcyclopentane D Question 12 5 pts Predict the major product of this reaction. OTS NaOH D os Naoh Corco O O O O Question 13 Predict the major product(s) of this reaction (select all that apply)
5 tributor of the following Which is the correct resonance cont compound? D) None of the Above D y cooh Which is the strongest acid? А) сносн,он NO, B) CH.COOH c) CI-CH.COOH E) Both C and D @ which is the product of 1,4- addition of the following reaction? CH=CH-CH=CH, HBr , ? A) CH₃-CH-CH=CH2 () CH₃ -CH=CH-CH₂Br. B) CH₂ Br-CH₂-CH=CH₂ D) All of the Above © which is the major product of the following more Bay E) No Reaction...
Give a detailed mechanism using curly arrow notation for each of the following rxns. a. Cyclohexanone with aniline b. 1,2-dimethylcyclopentane-1,2-diol with an acid catalyst c. 2-ethyl-3-methyl-1-butene with boron trifluoride: water complex as catalyst d. acetic acid with methanol and an acid catalyst e. butylacetoacetate with sodium ethoxide followed by n-hexylbromide then treatment with aqueous sodium hydroxide and heat f. 2,5-dimethyl-1,3-cyclohexanedione with lithiumdiisopropylamide the vinyl methyl ketone followed by sodium hydroxide and heat
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Thursday). 1. What starting material and reagents are needed for the following multi-step synthesis (HINT: aldol reactions work best when the starting material can only form one enolate)? 5 он о D. NaOH, H2O, Heat F. HO E. NaOH, H2O G. LDA Starting Material: Reagents: 2. LDA is a strong, sterically hindered base and will form the enolate. Sodium hydride is a weak base and will form the _ - enolate. Kinetic enolates are the stable and...