5. Which of the following alcohol would react to Lucas reagent very slowly? Indicate YES or NO on the boxes provided below the structure (2 points each). ÇH3 CH;CH,C-CHCH3 CH;CH,CHCH; CH;CH,OH OH ÓH CH3 (a) (b) (c)
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- 2-Methylpropane have more than one kind of hydrogen and will generate 2 different products with bromination in the presence of uv light. t or fOxidation of cholesterol converts the alcohol to a ketone. Under acidic or basic oxidationconditions, the C“C double bond migrates to the more stable, conjugated position. BeforeIR and NMR spectroscopy, chemists watched the UV spectrum of the reaction mixture tofollow the oxidation. Describe how the UV spectrum of the conjugated product, cholest-4-en-3-one, differs from that of cholesterol4. Draw a resonance structure for the triphenylmethyl cation, showing where else the cationic charge can be delocalized on one of the fully drawn out phenyl rings (Ph).
- In the following three compounds(1,2,3) arrange their relative reactivity towards the reagent CH3Cl / AlCl3. Justify your order?What is the missing reagent needed to perform the following transformation (assume mildly acidic catalysis)? a) CH3OH b) CH3COOH c) H2O d) CH3OCH3True or false? 2-bromo-2-methylpropane undergoes SN1 rather than SN2 because the nucleophile experiences steric hindrance, and a stable carbocation can be formed. When hydroxide ion reacts with 1-chloropropane the main product is 1-propanol.
- Write the structure of the compound E,E-2,4-Hexadien-1-ol and label each non-equivalent carbon with a letter, A,B,C..Why do you suppose only symmetrical ethers are prepared by the sulfuric-acid-catalyzed dehydration procedure? What product(s) would you expect if ethanol and 1-propanol were allowed to react together? In what ratio would the products be formed if the two alcohols were of equal reactivity?Select the reagent(s) below to convert cyclohexanone to the following compound
- In the following three compounds(1,2,3) arrange their relative reactivity towards the reagent CH3Cl / AlCl3. and justify it.Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by thecatalytic conversion of acetylene to benzene: 3C2 H2(g) ⇌ C6 H6(g). Which value of Kc would make this reactionmost useful commercially? Kc ≈ 0.01, Kc ≈ 1, or Kc ≈ 10. Explain your answerIdentify the correct ranking of the following molecules from most prone to nucleophilic attack at a sp^2 carbon to least. The correct answer is D, but please explain.