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QUESTION 41 The reaction of an alcohol with a carboxylic acid under acidic conditions results in...
In the Fischer esterification reaction a carboxylic acid reacts with an excess of alcohol in acidic conditions to for...
In the Fischer esterification reaction a carboxylic acid reacts
with an excess of alcohol in acidic conditions to form an ester.
During the reaction the sp2 hybridized carbonyl carbon of the acid
forms an sp3 hybridized intermediate before returning to sp2
hybridization in the product. Draw the structure of the neutral sp3
hybridized intermediate and the ester product in the reaction
between pentanioc acid and n-propanol.
Which reactant provides the oxygen atom found in the ester
linkage: Pentanoic acid, or...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following molecule. OH b.) The alcohol could be converted into which of the functional groups below, using a reaction we have covered in this course (i.e., in one step)? Circle all correct answers. i.) carboxylic acid ii.) alkene iii.) ether iv.) ester v.) aldehyde vi.) epoxide vii.) ketone viii.) acetal c.) How many signals would be seen in the 'C NMR spectrum of the alcohol...
In the Fischer esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditions to fo...
In the Fischer esterification reaction, a carboxylic acid reacts
with an excess of alcohol in acidic conditions to form an ester.
During the reaction the sp2 hybridized carbonyl carbon of the acid
forms an sp3 hybridized intermediate before returning to sp2
hybridization in the product. Draw the structure of the neutral sp3
hybridized intermediate and the ester product in the reaction
between pentanoic acid and n-propanol.
QUESTION 31 Which monomer would be best for an anionic polymerization? II III IV 11 11...
QUESTION 31 Which monomer would be best for an anionic polymerization? II III IV 11 11 QUESTION 32 Which set of reagents will accomplish the transformation below ? 1. Nah H2 Lindlar's 2. CH,Br 3. NaNH, 1. Nah 2. CH_Br 3. Ha Lindlar's 1. HBr, ROOR 2. (CH),Culi IV 11 HII IV QUESTION 33 Which of the following would have 4 peaks in the 13C NMR spectrum? II III IV 11 IV QUESTION 34 How many resonance structures can be...
Question 84 (1 point) The carbonyl carbon of an aldehyde is is when the silver ion...
Question 84 (1 point) The carbonyl carbon of an aldehyde is is when the silver ion of the Tollens reagent dissociated; precipitated dehydrated; plated reduced; oxidized hydrolyzed; insoluble oxidized; reduced Question 85 (1 point) When an ester is hydrolyzed in the presence of a strong acid catalyst, the products would be amine and carboxylate ion alcohol and carboxylic acid ammonium ion and carboxylic acid alcohol and carboxylate ion ammonium ion and carboxylate ion amine and carboxylic acid Page 86 of...
Question 19 Which is the most acidic hydrogen in the compound shown? II IV H H...
Question 19 Which is the most acidic hydrogen in the compound shown? II IV H H H H H -H H T III V CA. V B. C. IV D. III E. 11 Question 20 How many signals would you expect to find in the TH NMR spectrum of CH 30CH 2 CH 2OCH 3? CA. 4 B. 2 C. 1 D.3 E. 5
Question 11 (2 points) Saved Rank absorption of the indicated bonds in decreasing (highest to lowest)...
Question 11 (2 points) Saved Rank absorption of the indicated bonds in decreasing (highest to lowest) order of IR frequency. II O a) III>II>1 Ob) 1>1>111 Oc) III>>11 d) />II>111 Question 12 (2 points) Which of the indicated protons in the following compound would appear most downfield in the 1H NMR spectrum? III IV II O a) IV Ob) 11 c)! O d) III
Question 17 (2 points) Predict the product(s) for the following reaction: NaNH2, NH3 NH2 NH2 "NH₂...
Question 17 (2 points) Predict the product(s) for the following reaction: NaNH2, NH3 NH2 NH2 "NH₂ II III a) I, II and III b) III and I O c) I and II d) II and III Question 18 (2 points) A compound with a molecular formula of C10H1202 has the following 'H NMR spectrum. Which of the following structures is consistent with this spectrum? OCH2CH2CH3 0 CH2CH2CH, II OH OH CH2CH2CH3 CH,CH2CH3 IV a) Ob) OIV d) 1 Question 20...
Question 7 Predict the major organic product of the reaction sequence, i. NH3, H20 M ii....
Question 7 Predict the major organic product of the reaction sequence, i. NH3, H20 M ii. dilute Ha, cold O O OH NH2 NH2 HO HO HN I II III H N HN IV V CA. V B. III C. 11 DIV E. I Question 8 Which of the following would be the strongest acid? NO2 COH COH COH ON ON "NO2 I II III COH COH NO2 ON "NO2 IV V A. IV B. III C. I D. II...
QUESTION 63 What is the most likely product of the reaction below? NC heat CN CH...
QUESTION 63 What is the most likely product of the reaction below? NC heat CN CH CN CN *CN CN "CN CN HII IV QUESTION 64 Which coupling partner would the following Suzuki reaction require? Br Pd(OAc)2 + ? K_CO, B(OH)2 B(OH)2 11 III IV QUESTION 65 What is the functional group that remains when the following compound is reacted with an alkyl lithium (2 equivalents) followed by aqueous acidie workup? OH O a carboxylic acid an aldehyde an alcohol...
In the Fischer esterification reaction a carboxylic acid reacts
with an excess of alcohol in acidic conditions to form an ester.
During the reaction the sp2 hybridized carbonyl carbon of the acid
forms an sp3 hybridized intermediate before returning to sp2
hybridization in the product. Draw the structure of the neutral sp3
hybridized intermediate and the ester product in the reaction
between pentanioc acid and n-propanol.
Which reactant provides the oxygen atom found in the ester
linkage: Pentanoic acid, or...
6. Four part problem, all about the molecule shown in part a.) a.) Name the following molecule. OH b.) The alcohol could be converted into which of the functional groups below, using a reaction we have covered in this course (i.e., in one step)? Circle all correct answers. i.) carboxylic acid ii.) alkene iii.) ether iv.) ester v.) aldehyde vi.) epoxide vii.) ketone viii.) acetal c.) How many signals would be seen in the 'C NMR spectrum of the alcohol...
In the Fischer esterification reaction, a carboxylic acid reacts
with an excess of alcohol in acidic conditions to form an ester.
During the reaction the sp2 hybridized carbonyl carbon of the acid
forms an sp3 hybridized intermediate before returning to sp2
hybridization in the product. Draw the structure of the neutral sp3
hybridized intermediate and the ester product in the reaction
between pentanoic acid and n-propanol.
QUESTION 31 Which monomer would be best for an anionic polymerization? II III IV 11 11 QUESTION 32 Which set of reagents will accomplish the transformation below ? 1. Nah H2 Lindlar's 2. CH,Br 3. NaNH, 1. Nah 2. CH_Br 3. Ha Lindlar's 1. HBr, ROOR 2. (CH),Culi IV 11 HII IV QUESTION 33 Which of the following would have 4 peaks in the 13C NMR spectrum? II III IV 11 IV QUESTION 34 How many resonance structures can be...
Question 84 (1 point) The carbonyl carbon of an aldehyde is is when the silver ion of the Tollens reagent dissociated; precipitated dehydrated; plated reduced; oxidized hydrolyzed; insoluble oxidized; reduced Question 85 (1 point) When an ester is hydrolyzed in the presence of a strong acid catalyst, the products would be amine and carboxylate ion alcohol and carboxylic acid ammonium ion and carboxylic acid alcohol and carboxylate ion ammonium ion and carboxylate ion amine and carboxylic acid Page 86 of...
Question 19 Which is the most acidic hydrogen in the compound shown? II IV H H H H H -H H T III V CA. V B. C. IV D. III E. 11 Question 20 How many signals would you expect to find in the TH NMR spectrum of CH 30CH 2 CH 2OCH 3? CA. 4 B. 2 C. 1 D.3 E. 5
Question 11 (2 points) Saved Rank absorption of the indicated bonds in decreasing (highest to lowest) order of IR frequency. II O a) III>II>1 Ob) 1>1>111 Oc) III>>11 d) />II>111 Question 12 (2 points) Which of the indicated protons in the following compound would appear most downfield in the 1H NMR spectrum? III IV II O a) IV Ob) 11 c)! O d) III
Question 17 (2 points) Predict the product(s) for the following reaction: NaNH2, NH3 NH2 NH2 "NH₂ II III a) I, II and III b) III and I O c) I and II d) II and III Question 18 (2 points) A compound with a molecular formula of C10H1202 has the following 'H NMR spectrum. Which of the following structures is consistent with this spectrum? OCH2CH2CH3 0 CH2CH2CH, II OH OH CH2CH2CH3 CH,CH2CH3 IV a) Ob) OIV d) 1 Question 20...
Question 7 Predict the major organic product of the reaction sequence, i. NH3, H20 M ii. dilute Ha, cold O O OH NH2 NH2 HO HO HN I II III H N HN IV V CA. V B. III C. 11 DIV E. I Question 8 Which of the following would be the strongest acid? NO2 COH COH COH ON ON "NO2 I II III COH COH NO2 ON "NO2 IV V A. IV B. III C. I D. II...
QUESTION 63 What is the most likely product of the reaction below? NC heat CN CH CN CN *CN CN "CN CN HII IV QUESTION 64 Which coupling partner would the following Suzuki reaction require? Br Pd(OAc)2 + ? K_CO, B(OH)2 B(OH)2 11 III IV QUESTION 65 What is the functional group that remains when the following compound is reacted with an alkyl lithium (2 equivalents) followed by aqueous acidie workup? OH O a carboxylic acid an aldehyde an alcohol...
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