Homework Answers
Because hydrogen is abstracted from the less substituted position to give the alkene, bulky base will work.
If the base used would be EtONa/EtOH, it can abstract base from more substituted carbon due to absence of steric hindrance and can give a more substituted alkene which is not required.
t-BuOK/t-BuOH gives the less substituted alkene via E2 elimination.
In the next step, hydroboration-oxidation of alkene gives the required product because this undergoes markonikov addition to give an anti-markonikov product.
Oxymercuration-demercuration of alkene gives a markonikov product with OH attached to the more substituted carbon. This is not required, so options with this reagent are ruled out.
So, the correct option is option b.
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0 0 Select the two-step synthesis that will convert the starting material to the target alcohol...
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions...
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O
Which reagents will convert the alkyne shown into an aldehyde? OA. H2SO4, H20, HgSO4 B. 1....
Which reagents will convert the alkyne shown into an aldehyde? OA. H2SO4, H20, HgSO4 B. 1. BH3-THF 2. H2O2, OH- C. 1. H2SO4, H20 2. PCC, CH2Cl2 D. 1. Hg(OAC)2, H20 2. NaBH4, OH What reagents would use to carry out this synthesis? Br 1) n-PrCOCI, AICI: A. 2) Br2, FeBr3 3) NH2NH2, KOH, A 1) n-PrCOCI, AICI: B. 2) NH2NH2, KOH, A 3) Br2, FeBr3 1) Br2, FeBr3 OC. 2) n-BuCOCI, AICI: 3) NH2NH2, KOH, A 1) n-BuCI, AICI:...
Outline the correct reaction sequence that will successfully transform the indicated starting material into the indicated...
Outline the correct reaction sequence that will successfully transform the indicated starting material into the indicated product. Input your answer as uninterrupted sequence of letters. Do not separate the letters by commas, spaces, dashes, or anything else. If you do then the robo-grader will not recognize it as the correct answer. 5 steps A HBr H2SO4 / heat NBS / UV light KO-t-Bu / t-BuOH (for E2) Hg(OAC)2 / H20 then NaBH4 BH3-THF, then NaOH / H2O2 NaNz/DMSO KCN /...
2. Draw the major product(s) from the reaction of the starting material below with the following...
2. Draw the major product(s) from the reaction of the starting material below with the following reagents: (12 marks) (a) (b) (1) BH3, THF (2) H2O2, NaOH, H2O Cl in excess EtOH (0) I-CI (d) (1) O3. CH CI: (2) Zn, acetic acid (e) (1) (1) OsO4, THF (2) H2S (1) Hg(OOCCH3)2, H2O (2) NaBH4, NaOH, H2O
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since...
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since it comes rom renewable resources OH Ethanol Ethylene glycol Identify the reagents you would use to accomplish this industrial transformation that converts ethanol to ethylene glycol. O 1) Os04; 2) NaHsO3, H20 3) conc. H2S04, heat O 1) conc. H2S04, heat; 2) KMnO4, NaOH, cold O 1) conc. H2S04, heat; 2) oH O 1) H2, Pt; 2) Hg(OAc)2, H20; 3) NaBH4 BH3 THF; 3)...
In each case above, select the synthetic procedure/s that could be used to carry out the...
In each case above, select the synthetic
procedure/s that could be used to carry out the transformation,
giving the alcohol shown as the single major product. Options
are:The procedures are: Hydroboration/oxidation, Oxymercuration,
Both, or Neither
The procedures are:
Hydroboration/oxidation: alkene + BH3; then
H2O2, -OH.
Oxymercuration: alkene + Hg(OAc)2, H2O; then
NaBH4
In each case below select the synthetic procedure/s that could be used to carry out the transformation, giving the alcohol shown as the single major product. The procedures...
Which one of the following will transform the reactant into the product: Select one: A. 1)...
Which one of the following will transform the reactant into the product: Select one: A. 1) BH,/THF 2) H202/H20/0H B. H2O/Ni C. H2O/H,SO D. NaOH/H20 heat E. 1) Hg(OAc),/H,0 2) NaBH/OH
Predict the products of the following reactions. 1. BH3 2. H2O2, OH CHCl3, KOH I-C1 (show...
Predict the products of the following reactions. 1. BH3 2. H2O2, OH CHCl3, KOH I-C1 (show the dipole in 1-C1, which is more electronegative?) 1. Hg(OAC)2, H2O 2. NaBHA 1. Hg(OAC)2, EtOH (not water) 2. NaBH4 m-CPBA H30+ 1. Os04 2. NaHSO3, H20
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: Draw the structure...
Practice Problem 11.15a
Identify reagents that can be used for the following
synthesis:
Draw the structure of compound A.
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: он Compound A он correct. Identify reagent(s) that can be used to convert the starting alcohol into compound A. (1) TsCI, py; (2) NaOMe H2, Pt H2504 (1) TSCl, py; (2) t-BuOk SHOW ANSWER X Incorrect. Draw the structure of compound A 2 Edit Correct Identify reagent(s) that...
please write the steps needed to get this product. A NaBH4/H:0 S KMnO4 HNO3 H2SO4 K...
please write the steps needed to get this product.
A NaBH4/H:0 S KMnO4 HNO3 H2SO4 K HNO3 H2SO4 B LiAlH4/H:07 T CH3MgBr/H:0* U 1. LDA/ 2. CH Br C Dess-Martin L Nal D CrOz/H:07 M H3PO4 V NaCN E H/Pd N Bry/FeBr3 W NH 0 CH:COCI/AICI: X CH3NH2 P CH:CH-CT/AICI: Y SOCI: F SnCl/H30* 1. Hg(OAc)2, H2O/THF G 2. NaBHA HH2SO4, H2O, HgSO4 1. BH3, THF 2. H2O2, OH Q H3O+/H20 Z CH OH R KOH O CHICHI CH3CH CH:CH-C-OH...
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O
Which reagents will convert the alkyne shown into an aldehyde? OA. H2SO4, H20, HgSO4 B. 1. BH3-THF 2. H2O2, OH- C. 1. H2SO4, H20 2. PCC, CH2Cl2 D. 1. Hg(OAC)2, H20 2. NaBH4, OH What reagents would use to carry out this synthesis? Br 1) n-PrCOCI, AICI: A. 2) Br2, FeBr3 3) NH2NH2, KOH, A 1) n-PrCOCI, AICI: B. 2) NH2NH2, KOH, A 3) Br2, FeBr3 1) Br2, FeBr3 OC. 2) n-BuCOCI, AICI: 3) NH2NH2, KOH, A 1) n-BuCI, AICI:...
Outline the correct reaction sequence that will successfully transform the indicated starting material into the indicated product. Input your answer as uninterrupted sequence of letters. Do not separate the letters by commas, spaces, dashes, or anything else. If you do then the robo-grader will not recognize it as the correct answer. 5 steps A HBr H2SO4 / heat NBS / UV light KO-t-Bu / t-BuOH (for E2) Hg(OAC)2 / H20 then NaBH4 BH3-THF, then NaOH / H2O2 NaNz/DMSO KCN /...
2. Draw the major product(s) from the reaction of the starting material below with the following reagents: (12 marks) (a) (b) (1) BH3, THF (2) H2O2, NaOH, H2O Cl in excess EtOH (0) I-CI (d) (1) O3. CH CI: (2) Zn, acetic acid (e) (1) (1) OsO4, THF (2) H2S (1) Hg(OOCCH3)2, H2O (2) NaBH4, NaOH, H2O
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since it comes rom renewable resources OH Ethanol Ethylene glycol Identify the reagents you would use to accomplish this industrial transformation that converts ethanol to ethylene glycol. O 1) Os04; 2) NaHsO3, H20 3) conc. H2S04, heat O 1) conc. H2S04, heat; 2) KMnO4, NaOH, cold O 1) conc. H2S04, heat; 2) oH O 1) H2, Pt; 2) Hg(OAc)2, H20; 3) NaBH4 BH3 THF; 3)...
In each case above, select the synthetic
procedure/s that could be used to carry out the transformation,
giving the alcohol shown as the single major product. Options
are:The procedures are: Hydroboration/oxidation, Oxymercuration,
Both, or Neither
The procedures are:
Hydroboration/oxidation: alkene + BH3; then
H2O2, -OH.
Oxymercuration: alkene + Hg(OAc)2, H2O; then
NaBH4
In each case below select the synthetic procedure/s that could be used to carry out the transformation, giving the alcohol shown as the single major product. The procedures...
Which one of the following will transform the reactant into the product: Select one: A. 1) BH,/THF 2) H202/H20/0H B. H2O/Ni C. H2O/H,SO D. NaOH/H20 heat E. 1) Hg(OAc),/H,0 2) NaBH/OH
Predict the products of the following reactions. 1. BH3 2. H2O2, OH CHCl3, KOH I-C1 (show the dipole in 1-C1, which is more electronegative?) 1. Hg(OAC)2, H2O 2. NaBHA 1. Hg(OAC)2, EtOH (not water) 2. NaBH4 m-CPBA H30+ 1. Os04 2. NaHSO3, H20
Practice Problem 11.15a
Identify reagents that can be used for the following
synthesis:
Draw the structure of compound A.
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: он Compound A он correct. Identify reagent(s) that can be used to convert the starting alcohol into compound A. (1) TsCI, py; (2) NaOMe H2, Pt H2504 (1) TSCl, py; (2) t-BuOk SHOW ANSWER X Incorrect. Draw the structure of compound A 2 Edit Correct Identify reagent(s) that...
please write the steps needed to get this product.
A NaBH4/H:0 S KMnO4 HNO3 H2SO4 K HNO3 H2SO4 B LiAlH4/H:07 T CH3MgBr/H:0* U 1. LDA/ 2. CH Br C Dess-Martin L Nal D CrOz/H:07 M H3PO4 V NaCN E H/Pd N Bry/FeBr3 W NH 0 CH:COCI/AICI: X CH3NH2 P CH:CH-CT/AICI: Y SOCI: F SnCl/H30* 1. Hg(OAc)2, H2O/THF G 2. NaBHA HH2SO4, H2O, HgSO4 1. BH3, THF 2. H2O2, OH Q H3O+/H20 Z CH OH R KOH O CHICHI CH3CH CH:CH-C-OH...
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