Identify which of the following two reactions you would expect to occur more rapid Addition of...
CHEM 330 Homework # 9 Name: Due: 11/06/19 Identify which of the following two reactions you would expect to occur more rapidly and then explain your choice. (2 pts) 4. НЕг HЕг 5. Suggest an efficient target synthesis for the following transformation. (3 pts) OH 2 steps Br Provide the complete mechanism for the following reaction. (6 pts) 6 но HаРОд Н-о
Which of the following redox reactions do you expect to occur spontaneously in the reverse direction?
4) Which of the following reactions is faster: Addition of HBr to 2-methyl propene or addition of HBr to trans-2-butene. Assume the energy difference between starting alkenes can be ignored. Explain. (2 pts)
a. Which of the following two nucleophilic aRomatic substitution Reactions would you expect to proceed at Faster Rate. Explain in detail the Reasoning which led нь урик (one/31e + NaOH ol + NaBr O 00+ 001 09 --> + & Na Bir ol + NaO A
3. State which reagent you would expect to be more nucleophilic (1 pt.) ii. Explain why you would expect your choice to be more nucleophilic (2 pts.) a) CH CH.OH or CH CHO b) Ph-5 or Ph-O-
Page 2 3. I State which reagent you would expect to be more nucleophilic. (1 pt.) ii. Explain why you would expect your choice to be more nucleophilic. (2 pts.) a) CH,CH,OH or CH,CH,0- b) Ph-S or Ph-0-
please explain how you got the answer in step by step for best understanding. thank you 4) Which of the following alkenes is the major product when 2-bromo-2-methylpentane is treated with sodium ethoxide in ethanol? a)2-methylpent-1-ene b)2-methylpent-2-ene c) (E)-4-methylpent-2-ene d) (Z)-4-methylpent-2-ene e) 4-methylpent-1-ene
7. Which reduction method would you use to effect the following transformation? Circle the letter (a, b, or c) of your choice and explain why the other two reactions would make poor choices (which unwanted reaction would occur in each case?). de ? or a. Raney Nickel: HS S H / HBr, H20 followed by H, Raney Ni b. Wolff-Kishner: H2N-NH2, NaOH/H20, heat c. Clemmensen: Zn-Hg, HCI/H20, heat
10. In which of the following reactions can rearrangements occur? A. The addition of Br and H,O to an alkene. B. The addition of Br to an alkene. C. The addition of H O to an alkene in the presence of HSO D. Rearrangements can occur in all of the abovelreactions. 11. Which of the following alkenes reacts the fastest with HCI? A. D. utc for hier P MacBook A
Which of the following two reactions would have an equilibrium constant more favorable to the right? Explain your answer.