1.What product(s)would you expect the following radical reaction to provide in reasonable yields H2C- HC. N-Br (∈NBS H CH3 HOCH2、 H H C=C-CH3 B) H H3C-CH=C HC H H一 CH-
Page 1 1. What product(s) would you expect the following radical reaction to provide in reasonable yields? H3C C H C CH3 H H2C H2C C N C O O Br ? (= NBS) A) C C CH3 HOCH H 2 H B) H3C CH C CH2Br H C) H3C H C C CH2 H Br D) both B and C E) both A and C Ans: D
2.What would be the product of the following reaction? 2Q→？ O-0 站 o Page2
Page 2 2. What would be the product of the following reaction? 2 ? A) B) H C) H D) H H H H n E) No reaction occurs Ans: B
3.What product(s)would you expect from the following reaction? C-CH-0=CE NaCN H;C-CH-C=CHz B CN H3C-CH2-C=CH2 9 HC-CH=C-CH2CN D)both A and B E)both A and C Ans:E zaom司 H CH Br R>A>D>C B >C>D>B Ans:D Page 3
Page 3 3. What product(s) would you expect from the following reaction? A) H3C CH C CH2 H CN B) C) D) both A and B E) both A and C Ans: E 4. In order of decreasing reactivity, how would the bromides below rank in the following reaction? A) B > A > D > C D) D > A > C > B B) D > B > A > C E) C > D > B > A C) A > C > D > B Ans: D
5.What would be the final product(s)of the following reactions? C=C 2.CH20 H (CH3)NCH2CH2N(CH3)3.H2O HOCH、 H 0-c H H H C=CCH2-CH2OH H c) CH2OH Ans:B Page4
Page 4 5. What would be the final product(s) of the following reactions? H3C C C H H H 2. CH2O 3. H2O 1. CH3CH2CH2CH2Li (CH3)2NCH2CH2N(CH3)2 ? A) C C CH3 HOCH H 2 H B) CH2 C C H H H CH2OH C) H2C C CH3 CH2OH D) both A and B E) both A and C Ans: B
6.Which one of the following dienes would you expect to be the most stable? A) Ans:C 7.What product(s)would NOT be formed from the reaction of 1.3-butadiene with HCI? +HC→ 2 A)CICH2-CH2-CH:CH2 D)neither A nor C B)H:C-CHCI-CH=CH2 E)neither B nor C CICH2-CH=CH-CH Ans:A Page5
Page 5 6. Which one of the following dienes would you expect to be the most stable? A) B) C) D) E) Ans: C 7. What product(s) would NOT be formed from the reaction of 1,3-butadiene with HCl? + HCl ? A) ClCH2 CH2 CH CH2 D) neither A nor C B) H3C CHCl CH CH2 E) neither B nor C C) ClCH2 CH CH CH3 Ans: A