Homework Answers
3.
The examples given here are the SN2 displacement. Inversion of configuration at the chiral carbon takes place if the substrate is chiral. First example shows the inversion of configuration.
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3. Devise S2 reactions that would lead to the following products. Show stereochemistry where relevant. CH...
answer all questions 5. Fill in the missing structures (products or reagents, including stereochemistry, if relevant)...
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5. Fill in the missing structures (products or reagents, including stereochemistry, if relevant) and specify the most likely mechanism (SN1, S2, E1, E2) for formation of the product you have drawn. If a mixture will occur,show the major products. CH,ONa Сн,он нсулснэ H₃C Br HO H2O/acetone H₃C LIOH CH₂ H₂c a DMF 6. For the series shown below, label the most stable alkene, and the least stable alkene. CHE CH, CHE CH, -CH3
6. (24 pts) Complete the reactions shown below, remember to show all relevant stereochemistry. For products...
6. (24 pts) Complete the reactions shown below, remember to show all relevant stereochemistry. For products only draw the MAJOR product, if the conditions yield no reaction indicate "no reaction." Alkyl Halide H C Br HỌC CH, NaOCH,CH Br bo o led bono
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry...
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry when relevant (or loss thereof). If a reaction produces no significant products, write "NR". If you have a question about an abbreviation, just ask. NaBr OH 1. TsCI 2. Nal, DMF CI DMSO OH 1. PBrg NaCN 2. KOC(CH3)3 Ether LDA НОН THE NaH NaH PO Acetone Heat, water
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. (i) -COH На (i)...
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. (i) -COH На (i) Pd/C OsO4 NaHSO3, H20 н СHC1, КОН (iv) i) ВН, THF CECH in) H,О, NaOH Li, NH3 (liquid) (vi) XX H/H20 (vii) Two Markovnikov products Draw the structure of alkene for each of the following reactions. он BH3, THF i)H202 NaOH он )Hg(OAc)2 H20 i)NaBH (iii CH O i) Zn/H +
Question: 21. Provide the structure of the missing product(s) or reacant(s). Show the relevant stereochemistry (use...
Question: 21. Provide the structure of the missing
product(s) or reacant(s). Show the relevant stereochemistry (use
solid or dashed wedge) if necessary.
21. Provide the structure of missing product(s) or reactants. Show the relevant stereochemistry (use solid or dashed wedge) if necessary. HS I product (a) HOC 2 products (2 isomers) (6) HOL c Natl (a strong base) heat Eto (solvent) CH, = - H + NaNH NaN - | - (a nucleophile is needed here) "SCHE CH ISCHE (An...
21. (16 pts) Provide the structure of missing product(s) or reactants. Show the relevant stereochemistry (use...
21. (16 pts) Provide the structure of missing product(s) or reactants. Show the relevant stereochemistry (use solid or dashed wedge) if necessary. HS 1 product (a) HyC- H.0 S 2 products (2 isomers) (b) HO +NaHa stron base) heat ΕΕ Ο (solvent) (c) = + + NaNH, (a nucleophile is needed here) "SCH CH SCH (An alkyl halide is needed here, can be chloride, bromide or iodide, please show the correct stereochemistry)
Draw the organic products produced in each of the following reactions. Show stereochemistry when relevant CH3...
Draw the organic products produced in each of the following reactions. Show stereochemistry when relevant CH3 1. Hg(OAc)2, H20 2. NaBH4 CНз CHз Br2 CH2CI2 CHз CНз 1. ВНз, THF 3 2. H202 HСІ CH2CI2
raw the organic products produced in each of the following reactions. For partial credit, indicate whether...
raw the organic products produced in each of the following reactions. For partial credit, indicate whether the reaction is an E1, E2, S1. or S2 reaction on the line provided. Show stereochemistry when relevant. (19 pts) H₂ CH₂ нстве CH,OH HS acetone CH, Br e 99 cach. 9 CEC-H DMF e KUN DMSO Осн. CH, OH, 50°C
1. Provide products for the following reactions. Show appropriate stereochemistry where appropriate. HI H2SO4 CH,OH 1....
1. Provide products for the following reactions. Show appropriate stereochemistry where appropriate. HI H2SO4 CH,OH 1. Hg(OAc),/H,0 2. NaBH4 1. BH; 2. H,Oz/NaOH H/Pd H2SO4/H2O 4. Provide the missing reagents or starting materials in the following reactions. OH Br HO 1. Br2 2, NaNH (excess) 3. H2O
give the major organic products for the following reactions or sequence of reactions. show all relevant stereo chemistr...
give the major organic products for the following reactions or
sequence of reactions. show all relevant stereo chemistry.
Give the major organic product(s) for the following reactions or sequence of reactions. Show all relevant stereochemistry HC но" 1. HC L 1. CH,MgBr, ether 2. 1,0
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5. Fill in the missing structures (products or reagents, including stereochemistry, if relevant) and specify the most likely mechanism (SN1, S2, E1, E2) for formation of the product you have drawn. If a mixture will occur,show the major products. CH,ONa Сн,он нсулснэ H₃C Br HO H2O/acetone H₃C LIOH CH₂ H₂c a DMF 6. For the series shown below, label the most stable alkene, and the least stable alkene. CHE CH, CHE CH, -CH3
6. (24 pts) Complete the reactions shown below, remember to show all relevant stereochemistry. For products only draw the MAJOR product, if the conditions yield no reaction indicate "no reaction." Alkyl Halide H C Br HỌC CH, NaOCH,CH Br bo o led bono
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry when relevant (or loss thereof). If a reaction produces no significant products, write "NR". If you have a question about an abbreviation, just ask. NaBr OH 1. TsCI 2. Nal, DMF CI DMSO OH 1. PBrg NaCN 2. KOC(CH3)3 Ether LDA НОН THE NaH NaH PO Acetone Heat, water
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. (i) -COH На (i) Pd/C OsO4 NaHSO3, H20 н СHC1, КОН (iv) i) ВН, THF CECH in) H,О, NaOH Li, NH3 (liquid) (vi) XX H/H20 (vii) Two Markovnikov products Draw the structure of alkene for each of the following reactions. он BH3, THF i)H202 NaOH он )Hg(OAc)2 H20 i)NaBH (iii CH O i) Zn/H +
Question: 21. Provide the structure of the missing
product(s) or reacant(s). Show the relevant stereochemistry (use
solid or dashed wedge) if necessary.
21. Provide the structure of missing product(s) or reactants. Show the relevant stereochemistry (use solid or dashed wedge) if necessary. HS I product (a) HOC 2 products (2 isomers) (6) HOL c Natl (a strong base) heat Eto (solvent) CH, = - H + NaNH NaN - | - (a nucleophile is needed here) "SCHE CH ISCHE (An...
21. (16 pts) Provide the structure of missing product(s) or reactants. Show the relevant stereochemistry (use solid or dashed wedge) if necessary. HS 1 product (a) HyC- H.0 S 2 products (2 isomers) (b) HO +NaHa stron base) heat ΕΕ Ο (solvent) (c) = + + NaNH, (a nucleophile is needed here) "SCH CH SCH (An alkyl halide is needed here, can be chloride, bromide or iodide, please show the correct stereochemistry)
Draw the organic products produced in each of the following reactions. Show stereochemistry when relevant CH3 1. Hg(OAc)2, H20 2. NaBH4 CНз CHз Br2 CH2CI2 CHз CНз 1. ВНз, THF 3 2. H202 HСІ CH2CI2
raw the organic products produced in each of the following reactions. For partial credit, indicate whether the reaction is an E1, E2, S1. or S2 reaction on the line provided. Show stereochemistry when relevant. (19 pts) H₂ CH₂ нстве CH,OH HS acetone CH, Br e 99 cach. 9 CEC-H DMF e KUN DMSO Осн. CH, OH, 50°C
1. Provide products for the following reactions. Show appropriate stereochemistry where appropriate. HI H2SO4 CH,OH 1. Hg(OAc),/H,0 2. NaBH4 1. BH; 2. H,Oz/NaOH H/Pd H2SO4/H2O 4. Provide the missing reagents or starting materials in the following reactions. OH Br HO 1. Br2 2, NaNH (excess) 3. H2O
give the major organic products for the following reactions or
sequence of reactions. show all relevant stereo chemistry.
Give the major organic product(s) for the following reactions or sequence of reactions. Show all relevant stereochemistry HC но" 1. HC L 1. CH,MgBr, ether 2. 1,0
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