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10. Which of the following cations is most likely to undergo rearrangement? Is the rearrangement a...
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? HC CH HC CH H₃C. CH INI a) both I and II b) both II and III OI d) 1 Question 10 (2 points) Choose a major product for the reaction below 0 Cl/AICI OCH, CI OCH OCH OCH a) I, II and Ill b) d)
D) Br 6. Which of the following alkyl bromides is likely to undergo rearrangement by a...
D) Br 6. Which of the following alkyl bromides is likely to undergo rearrangement by a 1, 2-methyl shift during an Sy1 or El reaction (both reaction mechanisms form a carbocation)? A) benzylł bromide B) 2 -bromo 3-ethytpentane C) 3-bromo-3-methylpentane D) 2-bromo-3, 3-dimethylpentane r is untrue about the rate of an E2 elimination of an alky
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl...
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl shift? A) 3-bromo-3-methylpentane B) 2-chloro-3, 3-dimethylpentane C) 3-bromo-2, 3-dimethylpentane D) 2-iodo-2-methylpentane Which of the following alkyl halides is the worst substrate for the Sn2 reaction? A) Br B) Br C) Br D) Br In the mechanism for the reaction shown below, the first curved arrow moves from_ to Н. CH3CH2NH2 H3C + CH3 A) carbon (in CH3CH2NH2) to oxygen B) oxygen to nitrogen C)...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that a 1,2-shift can involve a shift of -H or -R Il IV QUESTION 27 Which of the following alkyl halides will undergo E2 elimination of HBr more rapidly (assume that elimination is induced by "OCH3)? Br Br AI B QUESTION 29 Is the configuration of the following molecule R or S? H OAR B. S chirality center present C Neither, there is no
Question 41 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 41 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? H2C CH3 H3C CH3 H3C CH3 III a) both II and III Ob) both I and II Oc) Od) Question 42 (2 points) For the reaction shown, select the expected major organic product. 1. 1 eq HCI 2. 1 eq HBr Br. CI -Br -CI Ha CI Br + enantiomer + enantiomer + enantiomer CI Br + enantiomer IV 11 III...
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? нус CH HC CH нус CH oa) both II and III ob) oc) 11 od) both I and II Question 48 (2 points) For the reaction shown, select the expected major organic product. 1. 1 e HCI 2 1 e HBO Ho Br + enantiomer + enantiomer + enantiomer + enantiomer IV 11 HI! Oa) 1 ob) 11 Oc) III od)...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4)? (a) 1 (b) 2 (c) 3 (d) 4 (e) None of the above 7. Which of the following statements is not true regarding pairs of enantiomers? (a) They have identical melting points (b) They have identical boiling points (c) They rotate plane polarized light in opposite directions (d) They react at identical rates with chiral reagents (e) All of the above...
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3...
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3 CH3 B) CH3CHOCH3 CH3 CH C) CH3CCH2 CH3 D) CH3 CH3CHCH2 E) CH3 CH3CCHCH2CH3 CH3 7. Which alcohol would initially produce the most stable carbocation when treated with concentrated H2SO4? A) CH3 CH3CCH2 CH3 он CH3 B) CH3CHCHCH3 он CH3 C) CH3CHCH2CH2OH CH3 D) HOCH2 CHCH2CH3 E) CH2 OH CH3CHCH2CH3 Page 4
Which of the following carbocation(s) can undergo a methyl shift and hydride shift to be more...
Which of the following carbocation(s) can undergo a methyl shift and hydride shift to be more stable than it was? Oo ngoa Select one: O a. Non of the above O b. Carbocation a o c. Carbocation b O d. Carbocationc O e. Carbocation d
Which of the following carbocation(s) can undergo a methyl shift OR Hydride shift to be more...
Which of the following carbocation(s) can undergo a methyl shift OR Hydride shift to be more stable than it was? o den 8 a Select one or more: a. Carbocation a b. Carbocation d B c. Carbocationc d. Carbocation b
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? HC CH HC CH H₃C. CH INI a) both I and II b) both II and III OI d) 1 Question 10 (2 points) Choose a major product for the reaction below 0 Cl/AICI OCH, CI OCH OCH OCH a) I, II and Ill b) d)
D) Br 6. Which of the following alkyl bromides is likely to undergo rearrangement by a 1, 2-methyl shift during an Sy1 or El reaction (both reaction mechanisms form a carbocation)? A) benzylł bromide B) 2 -bromo 3-ethytpentane C) 3-bromo-3-methylpentane D) 2-bromo-3, 3-dimethylpentane r is untrue about the rate of an E2 elimination of an alky
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl shift? A) 3-bromo-3-methylpentane B) 2-chloro-3, 3-dimethylpentane C) 3-bromo-2, 3-dimethylpentane D) 2-iodo-2-methylpentane Which of the following alkyl halides is the worst substrate for the Sn2 reaction? A) Br B) Br C) Br D) Br In the mechanism for the reaction shown below, the first curved arrow moves from_ to Н. CH3CH2NH2 H3C + CH3 A) carbon (in CH3CH2NH2) to oxygen B) oxygen to nitrogen C)...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that a 1,2-shift can involve a shift of -H or -R Il IV QUESTION 27 Which of the following alkyl halides will undergo E2 elimination of HBr more rapidly (assume that elimination is induced by "OCH3)? Br Br AI B QUESTION 29 Is the configuration of the following molecule R or S? H OAR B. S chirality center present C Neither, there is no
Question 41 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? H2C CH3 H3C CH3 H3C CH3 III a) both II and III Ob) both I and II Oc) Od) Question 42 (2 points) For the reaction shown, select the expected major organic product. 1. 1 eq HCI 2. 1 eq HBr Br. CI -Br -CI Ha CI Br + enantiomer + enantiomer + enantiomer CI Br + enantiomer IV 11 III...
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? нус CH HC CH нус CH oa) both II and III ob) oc) 11 od) both I and II Question 48 (2 points) For the reaction shown, select the expected major organic product. 1. 1 e HCI 2 1 e HBO Ho Br + enantiomer + enantiomer + enantiomer + enantiomer IV 11 HI! Oa) 1 ob) 11 Oc) III od)...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4)? (a) 1 (b) 2 (c) 3 (d) 4 (e) None of the above 7. Which of the following statements is not true regarding pairs of enantiomers? (a) They have identical melting points (b) They have identical boiling points (c) They rotate plane polarized light in opposite directions (d) They react at identical rates with chiral reagents (e) All of the above...
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3 CH3 B) CH3CHOCH3 CH3 CH C) CH3CCH2 CH3 D) CH3 CH3CHCH2 E) CH3 CH3CCHCH2CH3 CH3 7. Which alcohol would initially produce the most stable carbocation when treated with concentrated H2SO4? A) CH3 CH3CCH2 CH3 он CH3 B) CH3CHCHCH3 он CH3 C) CH3CHCH2CH2OH CH3 D) HOCH2 CHCH2CH3 E) CH2 OH CH3CHCH2CH3 Page 4
Which of the following carbocation(s) can undergo a methyl shift and hydride shift to be more stable than it was? Oo ngoa Select one: O a. Non of the above O b. Carbocation a o c. Carbocation b O d. Carbocationc O e. Carbocation d
Which of the following carbocation(s) can undergo a methyl shift OR Hydride shift to be more stable than it was? o den 8 a Select one or more: a. Carbocation a b. Carbocation d B c. Carbocationc d. Carbocation b
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