Homework Answers
7. The functional group outside the boxed area is Carboxylic acid. The functional group in the boxed area is Ester.
8. Its a Diels-Alder reaction. Option C will give the desired product as below.
9. Diene C can not react in Diels-Alder reaction. Diene to be reactive towards the reaction must have s-cis conformation, which does not present in option C. It has s-trans conformation.
10. Concerted reaction. It is a reaction in which all bond-breaking and bond making occurs at the same time.
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luently the functional group outside the boxed area aspirin C) carboxylic acid A) aspirin D) amide...
4 Which of the fotlowing is the most reactive carhosylie acid derivative A) ester D) anhydride 2 nitrile D) acid chloride E) amide 11) Typically, amides will hydrolyse under A) stronger B) more d...
4 Which of the fotlowing is the most reactive carhosylie acid derivative A) ester D) anhydride 2 nitrile D) acid chloride E) amide 11) Typically, amides will hydrolyse under A) stronger B) more dilute conditions than esters C) milder D) less vigorous E) more saline 12) 1-Methyleyclopentanol is classified as A) a primary aloohol B) a secondary alcohol C) a tertiary alcohol D)a phenol E) an enol 13. For a diene to undergo a Diels-Alder reaction it must: be substituted...
QUESTION 10 Identify the product for the following sigmatropic rearrangement. O A. 0 B. II O...
QUESTION 10 Identify the product for the following sigmatropic rearrangement. O A. 0 B. II O C.III O D.IV O E. None of the above are correct. QUESTION 9 Predict the product for the following sigmatropic Claisen rearrangement. он OH IV O A. - OB. II O C. III O D. IV O O E. V QUESTION 8 Which diene and dienophile would react to give the following Diels-Alder product? 공동 10H 우 우 이에 그 OAT B. II oooo...
Diels-Alder CN Reaction CN diene dienophile D. 1. 03, -78°C "H H' 2. Zn/H2O 4. Circle...
Diels-Alder CN Reaction CN diene dienophile D. 1. 03, -78°C "H H' 2. Zn/H2O 4. Circle all aromatic compounds: (2 points)
18, 22, 23 16) What diene and dienophile would react to give the product below? diere...
18, 22, 23
16) What diene and dienophile would react to give the product below? diere 17) Which of the following compounds is the most reactive dienophile in a Diels-Alder reaction with 1,3-butadiene? A) CH-CHOCH B) CH2-CHCHO C) CH3CHCHCH3 D) (CH3CH2 5) C .CH 18) Using resonance structures, explain the regiochemistry observed in this reaction OCH H.CO heat 19) Provide the major organic product of the following reaction H.CO ÇOCH H.COM 20) Provide the major organic product of the following...
(2) Diels-Alder reactions of a diene with a dienophile are known to undergo a concerted reaction....
(2) Diels-Alder reactions of a diene with a dienophile are known to undergo a concerted reaction. However, 2,3-Di- tert-1,3-butadene does not undergo Diels-Aider reactions. Explain 2,3-di-tert-1,3-butadiene (4) Propose mechanisms for the following steps 1 and 2. Slep 1 Step 2 Bry Br NaBH CH acetic acid (I) Using> as a symbol, rank the following alkyl bromides in order of decreasing reactivity. (6 pts) Br Cн,Br -Br (a) For hydrolysis by an Sy1 mechanism (b) For hydrolysis by an S,2 mechanism...
meoel goups are present in this molecle? a) carboxylic acid, amine, arene b) amide, arene c)...
meoel goups are present in this molecle? a) carboxylic acid, amine, arene b) amide, arene c) alcohol, ketone, aminene d) alcohol, ketone, amide, alkene 31 What is the correct IUPAC name for this compound b) 5-butyl-2.7-dimethylocatne a) 5-butyl-2,7-dimethylocatne c) 2-methyl-5-(2-methylpropylnonane d) 5-butyl-2-methylnonane Which of he folowing represe rosation o the 2-3 bond of butane? nts the highest energy eclipsed Hs Hs (b) H c) (d) H What is the correct order of strain energy (from lowest to highest)? 33. CH3...
Please help me!! 8. (8) Multiple choice. Circle the best answer. (2 pts each) Which of...
Please help me!!
8. (8) Multiple choice. Circle the best answer. (2 pts each) Which of the following is a reasonable definition of a concerted reaction? A. It is a reaction which takes place in a series of steps. B. It is a reaction which produces a loud noise. C. It is a reaction in which all bond-breaking and bond-forming occurs at the same time. D. It is a substitution reaction. If a molecule has 7 stereogenic centers and 2...
H н Identify each of the following as: A) Alcohol D) Ether G) Carboxylic acid J) Amide B) Phenol E) Aldehyde H) Est...
H н Identify each of the following as: A) Alcohol D) Ether G) Carboxylic acid J) Amide B) Phenol E) Aldehyde H) Ester C) Thiol F) Ketone ) Amine 7. CH, -СH, -CH, -ОН — 8. СH, -СH, -СH,-NH, 9. СCH,-СH,-0-СH,-СH, 10. CH CH2CH2CH 11. CH,CH-CH,CHСОН
____ 1. The diagram below represents serine, a polar, uncharged amino acid. Which functional group gives...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
4. Disnes undergo 1.2-addition OR 1,4-addition with FIX and X: The major product is determined by...
4. Disnes undergo 1.2-addition OR 1,4-addition with FIX and X: The major product is determined by the temperature of the reaction notice how alkene shifted OR AB 1,2-addition 1.4.ddition when heated A) Drew mechanisms to account for all possible products (hox all final products). Explain which products will be favored at low temperatures, which at high temperatures H-C B) Draw the major product of the following reactions. 1 Bry -78 °C HCI 40 °C 65 5. Only s-cis dienes can...
4 Which of the fotlowing is the most reactive carhosylie acid derivative A) ester D) anhydride 2 nitrile D) acid chloride E) amide 11) Typically, amides will hydrolyse under A) stronger B) more dilute conditions than esters C) milder D) less vigorous E) more saline 12) 1-Methyleyclopentanol is classified as A) a primary aloohol B) a secondary alcohol C) a tertiary alcohol D)a phenol E) an enol 13. For a diene to undergo a Diels-Alder reaction it must: be substituted...
QUESTION 10 Identify the product for the following sigmatropic rearrangement. O A. 0 B. II O C.III O D.IV O E. None of the above are correct. QUESTION 9 Predict the product for the following sigmatropic Claisen rearrangement. он OH IV O A. - OB. II O C. III O D. IV O O E. V QUESTION 8 Which diene and dienophile would react to give the following Diels-Alder product? 공동 10H 우 우 이에 그 OAT B. II oooo...
Diels-Alder CN Reaction CN diene dienophile D. 1. 03, -78°C "H H' 2. Zn/H2O 4. Circle all aromatic compounds: (2 points)
18, 22, 23
16) What diene and dienophile would react to give the product below? diere 17) Which of the following compounds is the most reactive dienophile in a Diels-Alder reaction with 1,3-butadiene? A) CH-CHOCH B) CH2-CHCHO C) CH3CHCHCH3 D) (CH3CH2 5) C .CH 18) Using resonance structures, explain the regiochemistry observed in this reaction OCH H.CO heat 19) Provide the major organic product of the following reaction H.CO ÇOCH H.COM 20) Provide the major organic product of the following...
(2) Diels-Alder reactions of a diene with a dienophile are known to undergo a concerted reaction. However, 2,3-Di- tert-1,3-butadene does not undergo Diels-Aider reactions. Explain 2,3-di-tert-1,3-butadiene (4) Propose mechanisms for the following steps 1 and 2. Slep 1 Step 2 Bry Br NaBH CH acetic acid (I) Using> as a symbol, rank the following alkyl bromides in order of decreasing reactivity. (6 pts) Br Cн,Br -Br (a) For hydrolysis by an Sy1 mechanism (b) For hydrolysis by an S,2 mechanism...
meoel goups are present in this molecle? a) carboxylic acid, amine, arene b) amide, arene c) alcohol, ketone, aminene d) alcohol, ketone, amide, alkene 31 What is the correct IUPAC name for this compound b) 5-butyl-2.7-dimethylocatne a) 5-butyl-2,7-dimethylocatne c) 2-methyl-5-(2-methylpropylnonane d) 5-butyl-2-methylnonane Which of he folowing represe rosation o the 2-3 bond of butane? nts the highest energy eclipsed Hs Hs (b) H c) (d) H What is the correct order of strain energy (from lowest to highest)? 33. CH3...
Please help me!!
8. (8) Multiple choice. Circle the best answer. (2 pts each) Which of the following is a reasonable definition of a concerted reaction? A. It is a reaction which takes place in a series of steps. B. It is a reaction which produces a loud noise. C. It is a reaction in which all bond-breaking and bond-forming occurs at the same time. D. It is a substitution reaction. If a molecule has 7 stereogenic centers and 2...
H н Identify each of the following as: A) Alcohol D) Ether G) Carboxylic acid J) Amide B) Phenol E) Aldehyde H) Ester C) Thiol F) Ketone ) Amine 7. CH, -СH, -CH, -ОН — 8. СH, -СH, -СH,-NH, 9. СCH,-СH,-0-СH,-СH, 10. CH CH2CH2CH 11. CH,CH-CH,CHСОН
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
4. Disnes undergo 1.2-addition OR 1,4-addition with FIX and X: The major product is determined by the temperature of the reaction notice how alkene shifted OR AB 1,2-addition 1.4.ddition when heated A) Drew mechanisms to account for all possible products (hox all final products). Explain which products will be favored at low temperatures, which at high temperatures H-C B) Draw the major product of the following reactions. 1 Bry -78 °C HCI 40 °C 65 5. Only s-cis dienes can...
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