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4. Provide sturctures for ALL major products (3 points each) CEN HC NaOEVETOH HEC CH2 0.05eq....
3. Give the major organic product(s) of each of the following reactions or sequences of reactions....
3. Give the major organic product(s) of each of the following reactions or sequences of reactions. Br2 CH3COOH OH 1. Bry, PB 2. H2O CH, III 13, NaOH (excess) HC-C-C- CH H20 CH; 1.2 equiv. NaOet, EtOH VOE2.AAB O= OE: + (CH),CHCHCH,Br 1. NOE! EtOH 2.H20, heat
Question 1: Draw the expected major product for the following reactions: НІ HC CH CH₂ HBO...
Question 1: Draw the expected major product for the following reactions: НІ HC CH CH₂ HBO ROOR Question 2: Draw a mechanism for the following transformations: a) H₃C CH3 HCI H₂C T CH3 HAC CH3 нс с Question 3: Draw the mechanism for the following transformations: нс сH3 CH3 о (H,SO4), он H₂C7 Question 4 HĄCE 1) Hg(OAC), H, 2) NaBH, HEC CH, Question : Predict the product(s) of the following reaction: 1) BHZ. THE Н4С SCH, 2) H2O, NaOH...
3. Shown below are a series of reactions. Predict the major product for each of them....
3. Shown below are a series of reactions. Predict the major product for each of them. Remember, you will need to first decide whether the reaction occurs by an SN2, SN1, E2, or E1 before you can determine what the product will be. Label each as SN2, SN1, E2, or E1. Hint: First decide whether S2/E2 or S1/E1 is favored, and then decide whether the reaction pathway goes by a substitution or elimination reaction. SN2 / SN1 E2/E1 Na DMSO,rt...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI 2) Bry, acetic acid 3) KOBU, A 4) NaOEI, ETOH, P CO- 5) H30 workup 6) THF, H.COPPA HC CH2 O e .cat. Pd(OAc) cat. PPh. DMF, EIN 2) LDA, THF. -78 °C 3) Chichen H3O* workup 4) NaBH, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde (c) L AL SUO TESTE TO 1) cat. H2SO4. A лон 2) O3, CH, Cl, then (CH),...
4. For Each of the pairs of compounds below, two their two boiling points are given;...
4. For Each of the pairs of compounds below, two their two boiling points are given; indicate which boiling point goes with which compound and explain your choice based on the structural features. (CH3)2CHCH(CH3)2 CH3(CH2)2CH3 bp 58º and 69 (CH3)2CHOCH(CH3)2 CH3CH OCH CH3 bp 35º and 68° CH3(CH2),CH=CH2 CH3(CH2)2CH=0 bp 64º and 1030 CH31 (MW=142) CH3(CH2)8CH3 (MW=142) bp 41° and 1740 Naci CH3CH2CI bp 12º and 1413 CH H3C-C-NH i CH3 H-CN bp 153° and 2040 CHE OH bp 217°...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
Draw the major product for each reaction. он. CH3 heat N(CH3)3 a. LiAIH4, Et20 b. H30*/H20...
Draw the major product for each reaction. он. CH3 heat N(CH3)3 a. LiAIH4, Et20 b. H30*/H20 1. NaCN, DMSO Br 2. a. LiAIH4. THF b. H3O+/H2O 1. NaN3, DMSO Br 2. a. LiAIH4, THF b. H3O /H20 1. HNO3, H2SO4 2. SnCl2 3. Br2 4. a. HNO2, H2SO4 H3C b. H2PO2 NH2 1. NaNO2, HCI, H20 но 2. HBF4
(30 pt) Draw the structures of the MAJOR products for the following reactions. Be sure to...
(30 pt) Draw the structures of the MAJOR products for the
following reactions. Be sure to clearly show the REGIO- and
STEREOCHEMISTRY of each product.
H2SO4 X - H2O BH3 H2O2 THF H20, OH Br2 CH2OH excess HBO d) CH3-C=C-CH3 1 eq Cl2 e) CH3 -C=C-CH3 CH2Cl2 Na CH3CO2H 9) CH.-C=C-H, under CH3COH f) CH3-CEC-CH3 liquid NH3 -78 °C H202 g) CH3CH2-CEC-H R2BH THE H2O, OH NaNH2 CH3CH2Br H2SO4 h) CH3CH2-CEC-H my Chcn=c20-n, Nanets, Cheka na H2O HgSO4 heat 1...
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
2 problems REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic...
2 problems
REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic addition of hypohalous acids to alkenes yields a 1,2-haloalcohol called a halohydrin. Halohydrin formation, however, does not result from the addition of HOBr, for example. Instead the addition is done indirectly by reaction of the alkene with Br, in the presence of water. The reaction also works with Cl2 to give chlorohydrins instead of bromohydrins. The reaction proceeds through a cyclic intermediate known as...
3. Give the major organic product(s) of each of the following reactions or sequences of reactions. Br2 CH3COOH OH 1. Bry, PB 2. H2O CH, III 13, NaOH (excess) HC-C-C- CH H20 CH; 1.2 equiv. NaOet, EtOH VOE2.AAB O= OE: + (CH),CHCHCH,Br 1. NOE! EtOH 2.H20, heat
Question 1: Draw the expected major product for the following reactions: НІ HC CH CH₂ HBO ROOR Question 2: Draw a mechanism for the following transformations: a) H₃C CH3 HCI H₂C T CH3 HAC CH3 нс с Question 3: Draw the mechanism for the following transformations: нс сH3 CH3 о (H,SO4), он H₂C7 Question 4 HĄCE 1) Hg(OAC), H, 2) NaBH, HEC CH, Question : Predict the product(s) of the following reaction: 1) BHZ. THE Н4С SCH, 2) H2O, NaOH...
3. Shown below are a series of reactions. Predict the major product for each of them. Remember, you will need to first decide whether the reaction occurs by an SN2, SN1, E2, or E1 before you can determine what the product will be. Label each as SN2, SN1, E2, or E1. Hint: First decide whether S2/E2 or S1/E1 is favored, and then decide whether the reaction pathway goes by a substitution or elimination reaction. SN2 / SN1 E2/E1 Na DMSO,rt...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI 2) Bry, acetic acid 3) KOBU, A 4) NaOEI, ETOH, P CO- 5) H30 workup 6) THF, H.COPPA HC CH2 O e .cat. Pd(OAc) cat. PPh. DMF, EIN 2) LDA, THF. -78 °C 3) Chichen H3O* workup 4) NaBH, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde (c) L AL SUO TESTE TO 1) cat. H2SO4. A лон 2) O3, CH, Cl, then (CH),...
4. For Each of the pairs of compounds below, two their two boiling points are given; indicate which boiling point goes with which compound and explain your choice based on the structural features. (CH3)2CHCH(CH3)2 CH3(CH2)2CH3 bp 58º and 69 (CH3)2CHOCH(CH3)2 CH3CH OCH CH3 bp 35º and 68° CH3(CH2),CH=CH2 CH3(CH2)2CH=0 bp 64º and 1030 CH31 (MW=142) CH3(CH2)8CH3 (MW=142) bp 41° and 1740 Naci CH3CH2CI bp 12º and 1413 CH H3C-C-NH i CH3 H-CN bp 153° and 2040 CHE OH bp 217°...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
Draw the major product for each reaction. он. CH3 heat N(CH3)3 a. LiAIH4, Et20 b. H30*/H20 1. NaCN, DMSO Br 2. a. LiAIH4. THF b. H3O+/H2O 1. NaN3, DMSO Br 2. a. LiAIH4, THF b. H3O /H20 1. HNO3, H2SO4 2. SnCl2 3. Br2 4. a. HNO2, H2SO4 H3C b. H2PO2 NH2 1. NaNO2, HCI, H20 но 2. HBF4
(30 pt) Draw the structures of the MAJOR products for the
following reactions. Be sure to clearly show the REGIO- and
STEREOCHEMISTRY of each product.
H2SO4 X - H2O BH3 H2O2 THF H20, OH Br2 CH2OH excess HBO d) CH3-C=C-CH3 1 eq Cl2 e) CH3 -C=C-CH3 CH2Cl2 Na CH3CO2H 9) CH.-C=C-H, under CH3COH f) CH3-CEC-CH3 liquid NH3 -78 °C H202 g) CH3CH2-CEC-H R2BH THE H2O, OH NaNH2 CH3CH2Br H2SO4 h) CH3CH2-CEC-H my Chcn=c20-n, Nanets, Cheka na H2O HgSO4 heat 1...
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
2 problems
REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic addition of hypohalous acids to alkenes yields a 1,2-haloalcohol called a halohydrin. Halohydrin formation, however, does not result from the addition of HOBr, for example. Instead the addition is done indirectly by reaction of the alkene with Br, in the presence of water. The reaction also works with Cl2 to give chlorohydrins instead of bromohydrins. The reaction proceeds through a cyclic intermediate known as...
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