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Which of the following addition reactions are stereospecific? (a) Cl2 addition to a disubstituted alkene (b)...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above Which of the following addition reactions are stereospecific? (a) Cl2 addition to a disubstituted alkene (b) HBr addition to a trisubstituted alkene (c) Radical addition of Cl2 to CH4 (d) Oxidation of a trisubstituted alkenes by using 03, Zn...
2. Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2...
2. Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above 3. Which of the following addition reactions are stereospecific? (a) Cl2 addition to a disubstituted alkene (b) HBr addition to a trisubstituted alkene (C) Radical addition of Cl2 to CH4 (d) Oxidation of a trisubstituted alkenes by using...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above
?? 16. Which of the following reagents would promote non-Markovnikov addition to an alkene? a. 1....
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16. Which of the following reagents would promote non-Markovnikov addition to an alkene? a. 1. Hg(OAc)2, H20/THF, 2. NaBH4 b. KBr/KOH c. H30+ d. 1. BH3, THF 2. H202OH- 17. Halohydrin formation would be achieved by reacting an alkene with which of the following? a. b. c. d. Cl2 and water Water and methanol Os04 H2 and a catalyst 18. Reacting an alkene with 03 followed by Zn/H2O+ will create, a. Two carboxylic acids b. Two ketones c. One...
Chapter 8 1. What is the degree of substitution of the following alkene? golo com e...
Chapter 8 1. What is the degree of substitution of the following alkene? golo com e to St . A. Monosubstituted B. Disubstituted C. Trisubstituted D. Tetrasubstituted 2. What is the degree of substitution of the following alkene? todo S wololo A. Monosubstituted B. Disubstituted C. Trisubstituted D. Tetrasubstituted 5. Drawn below is the structure of Singulair® (montelukast), a medication used to manage athsma. What is the degree of substitution of the alkene of Singulair®?
Alkene reaction and mechanisms practice exercise 1) O₃ 2) (CH3)2S 25) Treatment of cyclopentene with peroxybenzoic...
Alkene reaction and mechanisms practice exercise
1) O₃ 2) (CH3)2S 25) Treatment of cyclopentene with peroxybenzoic acid A) results in oxidative cleavage of the ring to produce an acyclic compound B) yields a meso epoxide C) yields an equimolar mixture of enantiomeric epoxides D) gives the same product as treatment of cyclopentene with Os04 E) none of the above 26) Provide a detailed, step-by-step mechanism for the reaction shown below. но Br2 na + HBT Br 27) Provide a detailed,...
10. In which of the following reactions can rearrangements occur? A. The addition of Br and...
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
Hydrogenation is one of the simplest of the addition reactions to an alkene. Yet understanding the...
Hydrogenation is one of the simplest of the addition reactions to an alkene. Yet understanding the stereochemical outcome can be challenging. Hydrogenation is considered a syn - addition reaction (both atoms are added to the cartoons on one side of the pi - bond). As H_2 or D_2 we symmetric, no regioselectivity (/.e which cartoon of the alkene to add to) is in play. The stereochemical patterns developed below for both symmetric and non - symmetric alkenes are applicable to...
Which of the following reagent can provide chlorohydrin with alkene?
17- Which of the following reagent can provide chlorohydrin with alkene? A) Cl2/H2O B) Br2/H2O C) HBr/H2O D) HCI/H2O18- Hydroboration of alkene proceed via A) Anti-Markovnikov rule B) Markovnikov rule C) Saytzeff's Rule D) Anti-Saytzeff's Rule 19. Which of the following compounds carbonium ion is more stable?
3. Fill in the blank a) The acid catalyzed hydration of alkenes (addition of H2O/H₂SO4) is...
3. Fill in the blank a) The acid catalyzed hydration of alkenes (addition of H2O/H₂SO4) is pick foa polar mechanism with carboncation intermediate one a radical mechanism with carbonction intermediate a radical mecha a concerted reaction b) The reaction of alkene with Her in presence of peroxide (addition of HBr, RooR) is a (same options as before] C) The SN 2 reaction is • a radical reaction with carbon radial intermediate • a concerted reaction a polar reaction with carbon...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above Which of the following addition reactions are stereospecific? (a) Cl2 addition to a disubstituted alkene (b) HBr addition to a trisubstituted alkene (c) Radical addition of Cl2 to CH4 (d) Oxidation of a trisubstituted alkenes by using 03, Zn...
2. Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above 3. Which of the following addition reactions are stereospecific? (a) Cl2 addition to a disubstituted alkene (b) HBr addition to a trisubstituted alkene (C) Radical addition of Cl2 to CH4 (d) Oxidation of a trisubstituted alkenes by using...
Which of the following addition reactions are anti additions (lead to trans products)? (a) Br2 addition to an alkene (b) Catalytic hydrogenation of an alkene. (c) HBr addition to an alkene (d) OsO4 addition to alkene (e) All of the above
??
16. Which of the following reagents would promote non-Markovnikov addition to an alkene? a. 1. Hg(OAc)2, H20/THF, 2. NaBH4 b. KBr/KOH c. H30+ d. 1. BH3, THF 2. H202OH- 17. Halohydrin formation would be achieved by reacting an alkene with which of the following? a. b. c. d. Cl2 and water Water and methanol Os04 H2 and a catalyst 18. Reacting an alkene with 03 followed by Zn/H2O+ will create, a. Two carboxylic acids b. Two ketones c. One...
Chapter 8 1. What is the degree of substitution of the following alkene? golo com e to St . A. Monosubstituted B. Disubstituted C. Trisubstituted D. Tetrasubstituted 2. What is the degree of substitution of the following alkene? todo S wololo A. Monosubstituted B. Disubstituted C. Trisubstituted D. Tetrasubstituted 5. Drawn below is the structure of Singulair® (montelukast), a medication used to manage athsma. What is the degree of substitution of the alkene of Singulair®?
Alkene reaction and mechanisms practice exercise
1) O₃ 2) (CH3)2S 25) Treatment of cyclopentene with peroxybenzoic acid A) results in oxidative cleavage of the ring to produce an acyclic compound B) yields a meso epoxide C) yields an equimolar mixture of enantiomeric epoxides D) gives the same product as treatment of cyclopentene with Os04 E) none of the above 26) Provide a detailed, step-by-step mechanism for the reaction shown below. но Br2 na + HBT Br 27) Provide a detailed,...
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
Hydrogenation is one of the simplest of the addition reactions to an alkene. Yet understanding the stereochemical outcome can be challenging. Hydrogenation is considered a syn - addition reaction (both atoms are added to the cartoons on one side of the pi - bond). As H_2 or D_2 we symmetric, no regioselectivity (/.e which cartoon of the alkene to add to) is in play. The stereochemical patterns developed below for both symmetric and non - symmetric alkenes are applicable to...
3. Fill in the blank a) The acid catalyzed hydration of alkenes (addition of H2O/H₂SO4) is pick foa polar mechanism with carboncation intermediate one a radical mechanism with carbonction intermediate a radical mecha a concerted reaction b) The reaction of alkene with Her in presence of peroxide (addition of HBr, RooR) is a (same options as before] C) The SN 2 reaction is • a radical reaction with carbon radial intermediate • a concerted reaction a polar reaction with carbon...
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