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CHAPTER 9 (10 pts) Alkynes are very similar in reactivity to alkenes. What product is obtained...
10.44 ( For the alkynes shows below, show the product(s) expected to form when treated under...
10.44 ( For the alkynes shows below, show the product(s) expected to form when treated under these conditions i) H2, Pd/C; ii) H2, Pd/C, Pb(OAc)2, CaCO3(Lindlar's Catalyst) iii) Na°, NH3(liquid), -33°C; iv) H Br (1 equiv); v) H-Cl (2 equiv); vi). H2SO4, HgSO4, H20; vii) 1. BH3, 2. H2O2, NaOH; viii) Cl2 (1 equiv); vii) Br2 (2 equiv)-*If you expect two products, show both (a) (b) (c) (d) (f) (e) I,
Draw the structure of the final product(s) of this series of reactions 1pt ernces 1 pt...
Draw the structure of the final product(s) of this series of reactions 1pt ernces 1 pt 1. Br 1 pt 2.3 equivalents of NaNH 3. mild acid 1 pt 4. BH 5. H202/ NaOH 1 pt 1 pt 1 pt Use the wedge/hash bond tools to indicate stereochemistry where it exists Include H atoms at chiral centers only If a group is achiral, do not use wedged or hashed bonds on it Draw organic species only. Do not include lone...
17. Use ANY needed reagents to effect the following transformation. (30 points) starting material product List...
17. Use ANY needed reagents to effect the following transformation. (30 points) starting material product List of Reagents -N:C:N- KMnO4, H2SO4 8 00 (CH3),COCOCOC(CH3)3 Ag(NH3)2+, 120 Fe, HCI KMnO4, NaOH, H2O, cold AlCl3 Bra (excess), NaOH (excess), H20 Brz, Fe Br2, H20 Br2, H2O, H3O+ Br2, hy Br2, NaOH (excess), H2O Br2, P Buli CF3CO,H CH;=0 Formaldehyde оо CH3COCCH o CH_CC1, pyridine H2, Lindlar's catalyst H2.Pd/C H2, Pa/C, high pressure H, Raney-Ni HANNH HENNH, KOH, (HOCH2CH2)20, heat H2O H20, H2SO4,...
Provide the major product(s) for the following reactions: Show Stereochemistry when necessary (9 points total) HBr...
Provide the major product(s) for the following reactions: Show Stereochemistry when necessary (9 points total) HBr (1 equivalent) HBr (2 equivalents) Br2 Brz (1 equivalent) CH,CI, (2 equivalents) CH,CI, HO 1) disyamylborane HgSo., H2SO4 2) H0, NaOH, H2O Bonus: Provide the major product(s) for the following reactions: Show Stereochemistry when necessary (4 points total) 1) NaNH, (1) NaNH, 2) (CH),CHCH,Br 2) (CH),CHCH,Br 3) H, 3) L, NH, Lindlar's catalyst 1) NaNH, 2) EtBr 3) Hz, Pd/C 1) NaNH, 2) EtBr...
The below reaction is accomplished with one reagent. Br The letters below represent all reagents you...
The below reaction is accomplished with one reagent. Br The letters below represent all reagents you have learned in chapters 6-8. Which of the below reagents would you use to accomplish this process? Enter the ONE correct letter below. • a. H2SO4, H20 b.HBO c. Br2 • d. Br2. H20 e. 1) BH3 (or R2BH), 2) NaOH, H20 • f. 1) OsO4, 2) NaHSO3, H20 g. 1) O3. 2) CH3SCH3 h.mCPBA • i.H2.Pd/C j. NaNH2 k 2 eg NaNH2 ....
could someone help me with these? thank you Question 30 1.88 pts What is the best...
could someone help me with these? thank you
Question 30 1.88 pts What is the best choice of reagent(s) to perform the following transformation? OH OH a) H20; H2SO4 c) BH3; followed by H2O2; NaOH e) 03, followed by (CH3)2S b) HgSO4, followed by NaBH4 d) Os04; followed by NaHSO3 a) Ob) Oc) d) e) Question 31 1.88 pts In cis-oct-5-en-3-yne, the shortest carbon-carbon single bond is between carbons a) 1 and 2 b) 2 and 3 c) 4 and...
X Incorrect. The synthesis above used bromobutane, but acetylene is the only allowed source of carbon...
X Incorrect. The synthesis above used bromobutane, but acetylene is the only allowed source of carbon atoms. Using the reagents given, identify a synthetic route for the production of bromobutane from acetylene. ? H Br The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions on this homework assignment 1. For the reaction outlined below in la and I draw out the reaction mechanism using arrow formalism to describe how the reaction below occurs. Be sure to draw out all action intermediates & the moment of all electrons needed to justify the formation of the indicand product. You do not need to add in any reagents that are not...
Provide the products obtained in each of the following four reactions. 1. Hydrogenation of (4S)-4-methyl-1-hexyne with...
Provide the products obtained in each of the following four
reactions.
1. Hydrogenation of (4S)-4-methyl-1-hexyne with H2 and
Palladium
2. Hydrogenation of (3S)-3-methyl-1-pentyne with H2 and
Palladium
3. Hydrogenation of (4S)-4-methyl-1-hexyne with Lindlar
catalyst
4. Hydrogenation of (3S)-3-methyl-1-pentyne with Lindlar
catalyst
5. Which of the above four reactions does not provide optically
active products?
Provide the IUPAC names of the reactants that would react with
HgSO4, and H2SO4 under oxymercuration-demercuration conditions to
provide the the following compounds A-F.
1. Reactant...
18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of...
18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of each compound (4 pts) (30 points total) 30 Unsat. Index = (2C+2-H-X+NY2 = 200 25 e = 2.00 ppm, 4.90 f = 1.27 ppm, 20 720 Compound 18a: C,H,O, singlet, 2H triplet, 3H 127 15 d = 2.66 ppm, a = 7.21 ppm, b = 7.18 ppm, doublet, 2H doublet, 2H C = 4.90...
10.44 ( For the alkynes shows below, show the product(s) expected to form when treated under these conditions i) H2, Pd/C; ii) H2, Pd/C, Pb(OAc)2, CaCO3(Lindlar's Catalyst) iii) Na°, NH3(liquid), -33°C; iv) H Br (1 equiv); v) H-Cl (2 equiv); vi). H2SO4, HgSO4, H20; vii) 1. BH3, 2. H2O2, NaOH; viii) Cl2 (1 equiv); vii) Br2 (2 equiv)-*If you expect two products, show both (a) (b) (c) (d) (f) (e) I,
Draw the structure of the final product(s) of this series of reactions 1pt ernces 1 pt 1. Br 1 pt 2.3 equivalents of NaNH 3. mild acid 1 pt 4. BH 5. H202/ NaOH 1 pt 1 pt 1 pt Use the wedge/hash bond tools to indicate stereochemistry where it exists Include H atoms at chiral centers only If a group is achiral, do not use wedged or hashed bonds on it Draw organic species only. Do not include lone...
17. Use ANY needed reagents to effect the following transformation. (30 points) starting material product List of Reagents -N:C:N- KMnO4, H2SO4 8 00 (CH3),COCOCOC(CH3)3 Ag(NH3)2+, 120 Fe, HCI KMnO4, NaOH, H2O, cold AlCl3 Bra (excess), NaOH (excess), H20 Brz, Fe Br2, H20 Br2, H2O, H3O+ Br2, hy Br2, NaOH (excess), H2O Br2, P Buli CF3CO,H CH;=0 Formaldehyde оо CH3COCCH o CH_CC1, pyridine H2, Lindlar's catalyst H2.Pd/C H2, Pa/C, high pressure H, Raney-Ni HANNH HENNH, KOH, (HOCH2CH2)20, heat H2O H20, H2SO4,...
Provide the major product(s) for the following reactions: Show Stereochemistry when necessary (9 points total) HBr (1 equivalent) HBr (2 equivalents) Br2 Brz (1 equivalent) CH,CI, (2 equivalents) CH,CI, HO 1) disyamylborane HgSo., H2SO4 2) H0, NaOH, H2O Bonus: Provide the major product(s) for the following reactions: Show Stereochemistry when necessary (4 points total) 1) NaNH, (1) NaNH, 2) (CH),CHCH,Br 2) (CH),CHCH,Br 3) H, 3) L, NH, Lindlar's catalyst 1) NaNH, 2) EtBr 3) Hz, Pd/C 1) NaNH, 2) EtBr...
The below reaction is accomplished with one reagent. Br The letters below represent all reagents you have learned in chapters 6-8. Which of the below reagents would you use to accomplish this process? Enter the ONE correct letter below. • a. H2SO4, H20 b.HBO c. Br2 • d. Br2. H20 e. 1) BH3 (or R2BH), 2) NaOH, H20 • f. 1) OsO4, 2) NaHSO3, H20 g. 1) O3. 2) CH3SCH3 h.mCPBA • i.H2.Pd/C j. NaNH2 k 2 eg NaNH2 ....
could someone help me with these? thank you
Question 30 1.88 pts What is the best choice of reagent(s) to perform the following transformation? OH OH a) H20; H2SO4 c) BH3; followed by H2O2; NaOH e) 03, followed by (CH3)2S b) HgSO4, followed by NaBH4 d) Os04; followed by NaHSO3 a) Ob) Oc) d) e) Question 31 1.88 pts In cis-oct-5-en-3-yne, the shortest carbon-carbon single bond is between carbons a) 1 and 2 b) 2 and 3 c) 4 and...
X Incorrect. The synthesis above used bromobutane, but acetylene is the only allowed source of carbon atoms. Using the reagents given, identify a synthetic route for the production of bromobutane from acetylene. ? H Br The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions on this homework assignment 1. For the reaction outlined below in la and I draw out the reaction mechanism using arrow formalism to describe how the reaction below occurs. Be sure to draw out all action intermediates & the moment of all electrons needed to justify the formation of the indicand product. You do not need to add in any reagents that are not...
Provide the products obtained in each of the following four
reactions.
1. Hydrogenation of (4S)-4-methyl-1-hexyne with H2 and
Palladium
2. Hydrogenation of (3S)-3-methyl-1-pentyne with H2 and
Palladium
3. Hydrogenation of (4S)-4-methyl-1-hexyne with Lindlar
catalyst
4. Hydrogenation of (3S)-3-methyl-1-pentyne with Lindlar
catalyst
5. Which of the above four reactions does not provide optically
active products?
Provide the IUPAC names of the reactants that would react with
HgSO4, and H2SO4 under oxymercuration-demercuration conditions to
provide the the following compounds A-F.
1. Reactant...
18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of each compound (4 pts) (30 points total) 30 Unsat. Index = (2C+2-H-X+NY2 = 200 25 e = 2.00 ppm, 4.90 f = 1.27 ppm, 20 720 Compound 18a: C,H,O, singlet, 2H triplet, 3H 127 15 d = 2.66 ppm, a = 7.21 ppm, b = 7.18 ppm, doublet, 2H doublet, 2H C = 4.90...
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