option A is correct
Explanation: In Hoffmann elimination reaction, least substituted alkene is formed as major product.
20. Which of the following products are the Hofmann product(s)? ОН conc. H2SO4 heat A. I...
1.Predict all the products for the following reaction. Which is the major product? Why? + conc. H2SO4 heat OH 2. Give an alcohol that you could use to synthesis each of the following alkenes? din 3.Draw the mechanisms for the following two schemes (two separate mechanisms). Only show the mechanism for the most stable product for each scheme. What is the key difference in the mechanistic steps between these two reactions? ОН ОН conc H2SO4 conc H2SO4 heat heat
Ans! 79. Draw the mechanism and product for the following elimination. ОН conc. H2SO4 heat Ans: 81. Draw the mechanism and product for the following elimination. Br KOtBu 88. Is the following more likely a nucleophile or a base? YNY Ans: 90. Which of the following is the strongest nucleophile? = =0 MeOH Meo B. U. ODD. A. Ans:
7) Which of the following is not an acceptable resonance structure of I? он ОН он он н В. D. E С. A. char 8) Which structure makes the largest contribution to the resonance hybrid? rean cente in an S rdon +CH CH CH CH CH сH CH CH СH Cн E. CH2 +CH2 CH2 CH2 В. A. С. D. 9) Which compound is the expected product of this reaction? OCH, heat А. В. С. D. E.
Application Questions 1. Predict all the products for the following reaction. Which is the major product? Why? conc. H2SO4 heat OH 2. Give an alcohol that you could use to synthesis each of the following alkenes? o in s 3. Draw the mechanisms for the following two schemes (two separate mechanisms). Only show the mechanism for the most stable product for each scheme. What is the key difference in the mechanistic steps between these two reactions? ОН conc H2SO4 heat...
8.34 Draw a mechanism for each of the following E1 processes: OH Br conc. H2SO4 Heat БЕТОН Heat (b) EtOH. Her (C) ОН conc. H2SO4 Heat OPUS (d) D
1. Predict all the products for the following reaction. Which is the major product? Why? conc. H2SO4 heat OH
1. Predict all the products for the following reaction. Which is the major product? Why? conc. H2SO4 heat OH
16. Draw the mechanism and product for the following elimination. OH conc. H2SO4 heat
4) Which is (are) the product(s) of the following reaca wing reaction? A) I, II, and III B ) Only I and III Only II and III D) Only I and I 35) What is (are) the product(s) of the following reaction? 35) A) B an DIV 36) What is the reagent required to accomplish the following transformation? A) PCC/CH2Cl2 C) [1] OsO4; [2] NaHSO3, H20 B) RCO3H, H2O/HO D) LiAlH4 37) Determine the product of the following reaction. A)...
Draw and upload the product(s) H2SO4, heat ОН