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- Stuck On These Problems Would Appreciate Some Help Thank You 1 (98.85 KiB) Viewed 41 times
Stuck on these problems. Would appreciate some help Thank you!
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Stuck on these problems. Would appreciate some help Thank you!
Stuck on these problems. Would appreciate some help Thank
you!
42. What is the predicted product of the reaction sequence shown? PBr3 Mg/ether H CrO₂ OH 2. H₂O* A. B. 6,7-dimethyl-3-nonanol 6,7-dimethyl-3-nonanone C. 6,7-dimethyl-3-nonanal D. 3,4-dimethyl-7-nonanol E. 3,4-dimethyl-7-nonanone 43. Which of the compounds shown is the strongest acid? OH HO IV V A. I B. II C. III D. IV E. V 44. Rank the following carboxylic acid derivatives in decreasing order (most to least) of reactivity towards nucleophilic substitution. NH₂ I 11 I> IV > III > II II > III > IV>I I> III >II> IV III > IV>II>I IV > I > III > II A. B. C. D. E. 111 H₂SO4/H₂O Br 45. What is the predicted product of the reaction shown? lla SOCI₂ CH3CH₂OH pyridine pyridine OH ethyl 3-methylbutanoate ethyl 2-methylpropanoate isobutyl ethanoate 5-methyl-3-hexanone E. none of these 46. What reagents are necessary to carry out the conversion shown? OH CH₂CH3 CH₂CH3 A. 1. Na2Cr2O7/H₂SO4/H₂O; 2. CH3CH₂CH₂CH₂MgBr; 4. H₂O B. 1. Na₂Cr₂O7/H₂SO4/H2O; 2. SOCI2; 3. excess CH3CH2CH2CuLi; 4. H₂O C. 1. Na2Cr2O7/H2SO4; 2. excess CH3CH₂MgBr; 4. H3O+ D. 1. Na2Cr2O7/H2SO4/H2O; 2. SOCI2; 3. excess CH3CH₂MgBr; 4. H₂O E. 1. Na2Cr2O7; 2. SOCI2; 3. CH3CH₂MgBr; 4. H₂O ABCDE A. B. C. D.
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42. What is the predicted product of the reaction sequence shown? PBr3 Mg/ether H CrO₂ OH 2. H₂O* A. B. 6,7-dimethyl-3-nonanol 6,7-dimethyl-3-nonanone C. 6,7-dimethyl-3-nonanal D. 3,4-dimethyl-7-nonanol E. 3,4-dimethyl-7-nonanone 43. Which of the compounds shown is the strongest acid? OH HO IV V A. I B. II C. III D. IV E. V 44. Rank the following carboxylic acid derivatives in decreasing order (most to least) of reactivity towards nucleophilic substitution. NH₂ I 11 I> IV > III > II II > III > IV>I I> III >II> IV III > IV>II>I IV > I > III > II A. B. C. D. E. 111 H₂SO4/H₂O Br 45. What is the predicted product of the reaction shown? lla SOCI₂ CH3CH₂OH pyridine pyridine OH ethyl 3-methylbutanoate ethyl 2-methylpropanoate isobutyl ethanoate 5-methyl-3-hexanone E. none of these 46. What reagents are necessary to carry out the conversion shown? OH CH₂CH3 CH₂CH3 A. 1. Na2Cr2O7/H₂SO4/H₂O; 2. CH3CH₂CH₂CH₂MgBr; 4. H₂O B. 1. Na₂Cr₂O7/H₂SO4/H2O; 2. SOCI2; 3. excess CH3CH2CH2CuLi; 4. H₂O C. 1. Na2Cr2O7/H2SO4; 2. excess CH3CH₂MgBr; 4. H3O+ D. 1. Na2Cr2O7/H2SO4/H2O; 2. SOCI2; 3. excess CH3CH₂MgBr; 4. H₂O E. 1. Na2Cr2O7; 2. SOCI2; 3. CH3CH₂MgBr; 4. H₂O ABCDE A. B. C. D.