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Question 30 1.88 pts What is the best...
Question 39 3.3 What is the best choice of reagent(s) to perform the following transformation? H2O,...
Question 39 3.3 What is the best choice of reagent(s) to perform the following transformation? H2O, H2504 Hg(OAc)2 and H20;followed by NaBH4 BH3; followed by H2O2. NaOH OsO4: followed by NaHSO3 Question 40 3.3 Which of the following sets consists of only aprotic solvents? water, hexane, methanol acetic acid, DMF, toluene DMSO, ethanol, acetonitrile hexane, acetonitrile, DMSO
1) Predict the major product of the following reaction.
1) Predict the major product of the following reaction. 2) What synthetic goal is achieved by subjecting an alkene to an oxymercuration-demercuration sequence? A) syn-hydroxylation B) Markovnikov addition of H2O wherein skeletal rearrangement is prevented C) anti-Markovnikov addition of H2O wherein skeletal rearrangement is promoted D) Markovnikov addition of H2O wherein skeletal rearrangement is promoted E) anti-Markovnikov addition of H20 wherein skeletal rearrangement is prevented 3) Treatment of 2-methylpropene with which of the following reaction conditions results in an anti-Markovnikov addition product? (circle all that apply) A) dry...
13. (12 pts-4 pts each) Show how you could carry out th how you could carry...
13. (12 pts-4 pts each) Show how you could carry out th how you could carry out the following synthesis reactions by placing the letters corresponding to the appropriate reagents above each ar must be in the correct order to receive full credit. priate reagents above each arrow. The reagents A. HBr, ether B. Br2, CH2Cl2 C. Br2, H2O D. 1. Hg(OAC)2, H2O/THF 2. NaBH4 E. 1. BH3, THF 2. H2O2, OH F. H2SO4, H2O/HgSO4 G. NBS, hy H. H/Pd/C...
please help 1. (4 pts) Draw the major product for each series of reactions. a. BzH6,...
please help
1. (4 pts) Draw the major product for each series of reactions. a. BzH6, diglyme b. NaOH, H2O2 a: MSCI, py c. MSCI, py d. NaCN, DMSO a. HBr, peroxides b. KOC(CH3)3, DMSO c. Bra, CH2Cl2 a. HBr, CH,CI2 b. KOC(CH3)3 c. HBr, peroxides d. NaCEC-CH3 Hz, Pd/CaCO3 CH3 CH2CH2OH O Pb(OAC)
1.88 pts Question 2 u The structure of the anthelmintic (worm medicine) C-santonin is shown below....
1.88 pts Question 2 u The structure of the anthelmintic (worm medicine) C-santonin is shown below. What is the unsaturation number of a-santonin? CH PICH b) 5 c) 6 d) 7 o b) ) d) o e) Question 6 1.88 pts Alkenes a) have lower boiling points than alcohols of similar molar mass. b) are more dense than alcohols of similar molar mass. c) react via the sigma bond of the carbon-carbon double bond. d) both (a) and (b) e)...
10. Provide the reagents necessary to complete the following transformation. 13. Provide the structure of the...
10.
Provide the reagents necessary to complete the following
transformation. 13. Provide the structure of the major organic
product of the reaction below
10. Provide the reagents necessary to complete the following transformation. A. 1. BH3 THF 2. H202, HO B). H20, H2SO4 C. OsO4. H202 D. CH3CO3H E. 1. CH3CO3H 2. H, H20 11. Which of the following is the best reaction sequence to use if one wants to accomplish a Markovnikov addition of water to an alkene with...
CHAPTER 9 (10 pts) Alkynes are very similar in reactivity to alkenes. What product is obtained...
CHAPTER 9 (10 pts) Alkynes are very similar in reactivity to alkenes. What product is obtained when the following reagents are added to 1-hexyne? 1. (a) molecular hydrogen/Pd/CaCOs (Lindlar's catalyst) (b) 1 mol HBr/peroxides (e cold, dilute KMnO4 (d) H2O, HgSO/H2SO4 (e) Sia BH, NaOH and H2O2
5.27 Give the principal organic products expected when 1-butene reacts with each of the following reagents...
5.27 Give the principal organic products expected when 1-butene reacts with each of the following reagents (a) Br2 in CH2Cl2 solvent (b) O3, -78 oc (c) product of (b) with (CH3)2S (d) product of (b) with H202 (e) O2, flame (f) HBr (g) I2, H20 (h) H2, Pt/C (i) HBr, peroxides (j) BH3 in tetrahydrofuran (THF) (k) product of G) with NaOH, H,02 (1) Hg(OAc), H2O (m) product of (I) with NaBH4/NaOH (n) HI (o) HI, AIBN
15) What synthetic goal is achieved by subjecting an alkene to BH3-THF, followed by oxidative working...
15) What synthetic goal is achieved by subjecting an alkene to BH3-THF, followed by oxidative working using H2O2 and NaOH? A) Markovnikov addition of water where relative stereochemistry is preserved B) Markovnikov addition of water where relative stereochemistry is scrambled (or destroyed) C) Anti-Markovnikov addition of water where relative stereochemistry is preserved D) Anti-Markovnikov addition of water where relative stereochemistry is scrambled (or destroyed) 16) Which of the following reaction occur by anti-addition to an alkene? A) Br2 B) BH3-THF,...
Predict the major organic product or products of each of the following reactions: Identify the mechanism...
Predict the major organic product
or products of each of the following reactions:
Identify the mechanism
taking place in each of the reactions and please provide
explanation.
H2SO4 a) (CHỊ) CH CH=CH, HO Hg(OAc)2 NaBH4 b) (CH3)2CH CH=CH2 H2O BH3: THE H2O2, NaOH c) (CH3),CH CH=CH2 H2SO4, H2O d) CHCECH HgSO4 HZ/Ni f) + Cl2 + H2O g) Cold KMnO4 dilute h) 1. CH CO-OH 2. Hz0 Br2 i) CC14
Question 39 3.3 What is the best choice of reagent(s) to perform the following transformation? H2O, H2504 Hg(OAc)2 and H20;followed by NaBH4 BH3; followed by H2O2. NaOH OsO4: followed by NaHSO3 Question 40 3.3 Which of the following sets consists of only aprotic solvents? water, hexane, methanol acetic acid, DMF, toluene DMSO, ethanol, acetonitrile hexane, acetonitrile, DMSO
13. (12 pts-4 pts each) Show how you could carry out th how you could carry out the following synthesis reactions by placing the letters corresponding to the appropriate reagents above each ar must be in the correct order to receive full credit. priate reagents above each arrow. The reagents A. HBr, ether B. Br2, CH2Cl2 C. Br2, H2O D. 1. Hg(OAC)2, H2O/THF 2. NaBH4 E. 1. BH3, THF 2. H2O2, OH F. H2SO4, H2O/HgSO4 G. NBS, hy H. H/Pd/C...
please help
1. (4 pts) Draw the major product for each series of reactions. a. BzH6, diglyme b. NaOH, H2O2 a: MSCI, py c. MSCI, py d. NaCN, DMSO a. HBr, peroxides b. KOC(CH3)3, DMSO c. Bra, CH2Cl2 a. HBr, CH,CI2 b. KOC(CH3)3 c. HBr, peroxides d. NaCEC-CH3 Hz, Pd/CaCO3 CH3 CH2CH2OH O Pb(OAC)
1.88 pts Question 2 u The structure of the anthelmintic (worm medicine) C-santonin is shown below. What is the unsaturation number of a-santonin? CH PICH b) 5 c) 6 d) 7 o b) ) d) o e) Question 6 1.88 pts Alkenes a) have lower boiling points than alcohols of similar molar mass. b) are more dense than alcohols of similar molar mass. c) react via the sigma bond of the carbon-carbon double bond. d) both (a) and (b) e)...
10.
Provide the reagents necessary to complete the following
transformation. 13. Provide the structure of the major organic
product of the reaction below
10. Provide the reagents necessary to complete the following transformation. A. 1. BH3 THF 2. H202, HO B). H20, H2SO4 C. OsO4. H202 D. CH3CO3H E. 1. CH3CO3H 2. H, H20 11. Which of the following is the best reaction sequence to use if one wants to accomplish a Markovnikov addition of water to an alkene with...
CHAPTER 9 (10 pts) Alkynes are very similar in reactivity to alkenes. What product is obtained when the following reagents are added to 1-hexyne? 1. (a) molecular hydrogen/Pd/CaCOs (Lindlar's catalyst) (b) 1 mol HBr/peroxides (e cold, dilute KMnO4 (d) H2O, HgSO/H2SO4 (e) Sia BH, NaOH and H2O2
5.27 Give the principal organic products expected when 1-butene reacts with each of the following reagents (a) Br2 in CH2Cl2 solvent (b) O3, -78 oc (c) product of (b) with (CH3)2S (d) product of (b) with H202 (e) O2, flame (f) HBr (g) I2, H20 (h) H2, Pt/C (i) HBr, peroxides (j) BH3 in tetrahydrofuran (THF) (k) product of G) with NaOH, H,02 (1) Hg(OAc), H2O (m) product of (I) with NaBH4/NaOH (n) HI (o) HI, AIBN
15) What synthetic goal is achieved by subjecting an alkene to BH3-THF, followed by oxidative working using H2O2 and NaOH? A) Markovnikov addition of water where relative stereochemistry is preserved B) Markovnikov addition of water where relative stereochemistry is scrambled (or destroyed) C) Anti-Markovnikov addition of water where relative stereochemistry is preserved D) Anti-Markovnikov addition of water where relative stereochemistry is scrambled (or destroyed) 16) Which of the following reaction occur by anti-addition to an alkene? A) Br2 B) BH3-THF,...
Predict the major organic product
or products of each of the following reactions:
Identify the mechanism
taking place in each of the reactions and please provide
explanation.
H2SO4 a) (CHỊ) CH CH=CH, HO Hg(OAc)2 NaBH4 b) (CH3)2CH CH=CH2 H2O BH3: THE H2O2, NaOH c) (CH3),CH CH=CH2 H2SO4, H2O d) CHCECH HgSO4 HZ/Ni f) + Cl2 + H2O g) Cold KMnO4 dilute h) 1. CH CO-OH 2. Hz0 Br2 i) CC14
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