Homework Answers
A)
First step is enolate formation and that enolate will attack on
another molecule of ester to get 1,3-diketo compound.
B) This is grignard reaction, grignard reagent with ester will end up with tertiary alcohol. Reaction will not stop at ketone Steve.
C) This is intermolecular cyclisation reaction.
D) This is alkylation reaction, keton will form enolate in presence of sodium hydride which will react with ethyl iodide to get alkylated product.
E) This is witting reaction we will get alkene product in this reaction.
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3. (3x10 = 30 points) Reactions. Give major product structure of following reactions. Indicates stereochemistry where...
3. (3x10-30 points) Reactions. Give the product structure of following reactions, indicate stereochemistry where appropriate. A)...
3. (3x10-30 points) Reactions. Give the product structure of following reactions, indicate stereochemistry where appropriate. A) + Ph2pt-CHCH3 i. EtMgBr (excess) B) . H3o i. NaOEt Eto C) ii. H,O i. LDA D) i. C2Hs C12, hv E) Me AlC F) NaOEt OEt Ni, H2 H) heat OEt NaOEt EtO OEt Br
Give the major product(s) (indicating stereochemistry where appropriate) of each of the following reactions. он a)...
Give the major product(s) (indicating stereochemistry where
appropriate) of each of the following reactions.
он a) 2. 3. H (any strong acid) 1. HBr(1 equiv) MgBr, then 20 2. Mg then H20 OH c) 2. MeMgBr, then H20 3. PBr3, pyridine 4. NaCN 1. HBr (2 equiv) 2. NaNH2 (2 equiv) d) 1. BH3 2. HOOH, NaOH 3. TsCI, pyridine 4. NaSH
Provide the major product(s) for the following Provide the major product(s) for the following reactions. Be...
Provide the major product(s) for the following Provide the major product(s) for the following reactions. Be sure to note stereochemistry and racemic mixtures. NaOH, H29 2 100 °Ç ? NaOH, H2O H 0°C H W H CCl3 OC (provide product of both steps) H a. Hn b. CHEM 370 W13 Homework Page 1 of 2 giorel Noot Hoi solu NOEL IN DER NaOH, H2O 100 °C Hv NaOET, H OEt EtOH 8. Eto- i. LDA, -78°C NaO Me MeOH Оме...
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. 3 CO3H i) OsO4...
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. 3 CO3H i) OsO4 H ii) NaHSO3, H2O CHC13, KOH any cha, kot i) BH3, THF CECH 11) H2O2, NaOH Li NH (liquid) cm X Ft, H/HO (vii) Two Markovnikov products Draw the structure of alkene for each of the following reactions. OH i) BH, THF 11) H202, NaOH 1) Hg(OAc)2, H20 ii) NaBH4 1) 03 ii) Zn/H Styrene undergoes propagation to give polystyrene. Showing electron-flow using half-headed...
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if...
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) 50% H2SO4 50% H20 1. BH3, THF 2. H2O2/KOH CH3COOH ry condon YY PEO 1. 03 2. Zn/H2O 2. Give the syn or anti addition products for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points total) Hz/Pt 1 point 1 point Hypt DBk Det ook o BryH2O 1....
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if...
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) НBr 50% H2SO4 50% H2O 1. BH3, THF 2. НОг/КОН CHсоон 1. O3 2.Zn/H20
2. Predict the major organic product(s) of the following reactions. Include stereochemistry where appropriate. (4 points)...
2. Predict the major organic product(s) of the following reactions. Include stereochemistry where appropriate. (4 points) 1) BH3, THE 2) H2O2, NaOH Et Et H2 Pd/C
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if...
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) 50% H2SO4 50% H20 1. BH3, THF 2. H2O2/KOH CH3COOH ry condon YY PEO 1. 03 2. Zn/H2O 2. Give the syn or anti addition products for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points total) Hz/Pt 1 point 1 point Hypt DBk Det ook o BryH2O 1....
Give the major organic product(s) of the following reactions or sequences of reactions. Show the stereochemistry...
Give the major organic product(s) of the following reactions or
sequences of reactions. Show the stereochemistry and/or isotope
position clearly where it is relevant. If you think that the
reaction would not occur, write as "NR" or "No Reaction."
NaOH ? *O*CH3 H2O Note: ΑΙ H DIBAH 1) DIBAH 2) H20 C.
1 125 pls, 5 pts a Give the maior product following reactions indicating stereochemistry where appropriate...
1 125 pls, 5 pts a Give the maior product following reactions indicating stereochemistry where appropriate of each of the 1. Brz 2. NaNHz (3 equiv) 3. Br 1. NaNH2 2 h , then 3. TSCI, pyridine 4. NaCN P ROGH 1. RO-OH 2. MeMgBr, then 3. PBrz. pyridine 1. R ON Roll 2. MeMgBr, then 3. HyCro H20
3. (3x10-30 points) Reactions. Give the product structure of following reactions, indicate stereochemistry where appropriate. A) + Ph2pt-CHCH3 i. EtMgBr (excess) B) . H3o i. NaOEt Eto C) ii. H,O i. LDA D) i. C2Hs C12, hv E) Me AlC F) NaOEt OEt Ni, H2 H) heat OEt NaOEt EtO OEt Br
Give the major product(s) (indicating stereochemistry where
appropriate) of each of the following reactions.
он a) 2. 3. H (any strong acid) 1. HBr(1 equiv) MgBr, then 20 2. Mg then H20 OH c) 2. MeMgBr, then H20 3. PBr3, pyridine 4. NaCN 1. HBr (2 equiv) 2. NaNH2 (2 equiv) d) 1. BH3 2. HOOH, NaOH 3. TsCI, pyridine 4. NaSH
Provide the major product(s) for the following Provide the major product(s) for the following reactions. Be sure to note stereochemistry and racemic mixtures. NaOH, H29 2 100 °Ç ? NaOH, H2O H 0°C H W H CCl3 OC (provide product of both steps) H a. Hn b. CHEM 370 W13 Homework Page 1 of 2 giorel Noot Hoi solu NOEL IN DER NaOH, H2O 100 °C Hv NaOET, H OEt EtOH 8. Eto- i. LDA, -78°C NaO Me MeOH Оме...
Predict the major product(s) of the following reactions. Show stereochemistry where appropriate. 3 CO3H i) OsO4 H ii) NaHSO3, H2O CHC13, KOH any cha, kot i) BH3, THF CECH 11) H2O2, NaOH Li NH (liquid) cm X Ft, H/HO (vii) Two Markovnikov products Draw the structure of alkene for each of the following reactions. OH i) BH, THF 11) H202, NaOH 1) Hg(OAc)2, H20 ii) NaBH4 1) 03 ii) Zn/H Styrene undergoes propagation to give polystyrene. Showing electron-flow using half-headed...
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) 50% H2SO4 50% H20 1. BH3, THF 2. H2O2/KOH CH3COOH ry condon YY PEO 1. 03 2. Zn/H2O 2. Give the syn or anti addition products for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points total) Hz/Pt 1 point 1 point Hypt DBk Det ook o BryH2O 1....
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) НBr 50% H2SO4 50% H2O 1. BH3, THF 2. НОг/КОН CHсоон 1. O3 2.Zn/H20
2. Predict the major organic product(s) of the following reactions. Include stereochemistry where appropriate. (4 points) 1) BH3, THE 2) H2O2, NaOH Et Et H2 Pd/C
1. Give the structure of the product(s) for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points) 50% H2SO4 50% H20 1. BH3, THF 2. H2O2/KOH CH3COOH ry condon YY PEO 1. 03 2. Zn/H2O 2. Give the syn or anti addition products for the following addition reactions. Show appropriate stereochemistry if necessary to get the full credits. (5 points total) Hz/Pt 1 point 1 point Hypt DBk Det ook o BryH2O 1....
Give the major organic product(s) of the following reactions or
sequences of reactions. Show the stereochemistry and/or isotope
position clearly where it is relevant. If you think that the
reaction would not occur, write as "NR" or "No Reaction."
NaOH ? *O*CH3 H2O Note: ΑΙ H DIBAH 1) DIBAH 2) H20 C.
1 125 pls, 5 pts a Give the maior product following reactions indicating stereochemistry where appropriate of each of the 1. Brz 2. NaNHz (3 equiv) 3. Br 1. NaNH2 2 h , then 3. TSCI, pyridine 4. NaCN P ROGH 1. RO-OH 2. MeMgBr, then 3. PBrz. pyridine 1. R ON Roll 2. MeMgBr, then 3. HyCro H20
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