Homework Answers
Option B
Since it is 3° allylic cation more stable and also stabilized by mesomeric effect of OMe group.
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D Question 19 6 pts The bromination of anisole at the para position occurs through a...
0 Question 4 6 pts The rate determining step in the bromination of an alkene creates...
0 Question 4 6 pts The rate determining step in the bromination of an alkene creates a bromonium ion. Which of the structures drawn is correct for the intermediate in the reaction shown? (+/-) :Br: Question 5 6 pts How many asymmetric centers (ie, stereocenters) are present in the compound shown below?
Question 19 Which of the following undergoes the most rapid bromination upon treatment with Br 2/FeBr...
Question 19 Which of the following undergoes the most rapid bromination upon treatment with Br 2/FeBr 3? benzene nitrobenzene bromobenzene anisole
D Question 1 5 pts Grignard reagents can be used to convert esters into tertiary alcohols...
D Question 1 5 pts Grignard reagents can be used to convert esters into tertiary alcohols after an acid workup. True False Question 2 7 pts The sigma complex intermediate formed during electrophilic aromatic substitution (EAS) reactions is resonance stabilized. Electron donating groups (EDGs) typically make the intermediate more stable and electron withdrawing groups (EWGS) typically make the intermediate less stable. Using this information, which statement is correct regarding EDGs versus EWGS? The stability of the sigma complex has nothing...
Question 3 6 pts What reagents would be required to make the following transformation? C12 (1...
Question 3 6 pts What reagents would be required to make the following transformation? C12 (1 equiv HCI C12/DCM C12/FeC13 Question 4 6 pts The rate determining step in the bromination of an alkene creates a bromonium ion. Which of the structures drawn is correct for the intermediate in the reaction shown? (+/-) : Br: We were unable to transcribe this imageQuestion 5 6 pts How many asymmetric centers (ie, stereocenters) are present in the compound shown below?
Question 6 6 pts What is the major organic product of the reaction shown? :0. lin....
Question 6 6 pts What is the major organic product of the reaction shown? :0. lin. | | | | || | | ||||| | | | || | | | | || | Question 7 6 pts Which of the structures shown is correct for the most stable form of cis-1,3-dimethylcyclohexane? We were unable to transcribe this imageQuestion 8 6 pts Which of the following is the best substrate for an SN2 reaction? Benzyl bromide 2-iodo-2-methylbutane 2-bromopentane Fluoromethane
1. Consider the three molecules below to answer the following questions. Circle TRUE or FALSE at...
1. Consider the three molecules below to answer the following questions. Circle TRUE or FALSE at the end of each question (0.5 points each). Molecule A Molecule C Molecule B A. The rate of EAS with Molecule B will be faster than the rate of EAS with Molecule A (assume MAJOR product formation). TRUE or FALSE B. Molecule C will undergo nitration to yield a meta-product that is the MAJOR product. TRUE or FALSE c. The rate of meta-product formation...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
D Question 4 1 pts What is the formal charge on either of the singly bonded...
D Question 4 1 pts What is the formal charge on either of the singly bonded O's in the structure S-O D Question 5 1 pts Two possible Lewis structures for CS2 are shown below. Which resonance structure is more likely to dominate the electronic distribution in the CS2 molecule? O Both are weighted equally. O Neither is a correct Lewis structure.
D Question 3 6 pts Short Answer 3. (6 pts) An alpha particle is simply a...
D Question 3 6 pts Short Answer 3. (6 pts) An alpha particle is simply a helium atom stripped of its electrons (i.e., it is the nucleus of a helium atom, which consists of two protons and two neutrons). If this alpha particle is accelerated through a potential difference of 588 V, how much kinetic energy does it gain in units of eV (electron volts)? Answer to at least three significant figures. 1 eV = 1.6 x 10-19 J and...
Question 7 [1.5 pts] Which one of the following statements about Reaction #6 is correct? Reaction...
Question 7 [1.5 pts] Which one of the following statements about Reaction #6 is correct? Reaction #6 Н D CH2CI2 NaN3 E OThe major organic product arises from front face attack by the N3 anion at atom D O The major organic product arises from front face attack by the N3 anion at atom E OThe major organic product arises from back face attack by the N3 anion at atom D The major organic product arises from back face attack...
0 Question 4 6 pts The rate determining step in the bromination of an alkene creates a bromonium ion. Which of the structures drawn is correct for the intermediate in the reaction shown? (+/-) :Br: Question 5 6 pts How many asymmetric centers (ie, stereocenters) are present in the compound shown below?
Question 19 Which of the following undergoes the most rapid bromination upon treatment with Br 2/FeBr 3? benzene nitrobenzene bromobenzene anisole
D Question 1 5 pts Grignard reagents can be used to convert esters into tertiary alcohols after an acid workup. True False Question 2 7 pts The sigma complex intermediate formed during electrophilic aromatic substitution (EAS) reactions is resonance stabilized. Electron donating groups (EDGs) typically make the intermediate more stable and electron withdrawing groups (EWGS) typically make the intermediate less stable. Using this information, which statement is correct regarding EDGs versus EWGS? The stability of the sigma complex has nothing...
Question 3 6 pts What reagents would be required to make the following transformation? C12 (1 equiv HCI C12/DCM C12/FeC13 Question 4 6 pts The rate determining step in the bromination of an alkene creates a bromonium ion. Which of the structures drawn is correct for the intermediate in the reaction shown? (+/-) : Br: We were unable to transcribe this imageQuestion 5 6 pts How many asymmetric centers (ie, stereocenters) are present in the compound shown below?
Question 6 6 pts What is the major organic product of the reaction shown? :0. lin. | | | | || | | ||||| | | | || | | | | || | Question 7 6 pts Which of the structures shown is correct for the most stable form of cis-1,3-dimethylcyclohexane? We were unable to transcribe this imageQuestion 8 6 pts Which of the following is the best substrate for an SN2 reaction? Benzyl bromide 2-iodo-2-methylbutane 2-bromopentane Fluoromethane
1. Consider the three molecules below to answer the following questions. Circle TRUE or FALSE at the end of each question (0.5 points each). Molecule A Molecule C Molecule B A. The rate of EAS with Molecule B will be faster than the rate of EAS with Molecule A (assume MAJOR product formation). TRUE or FALSE B. Molecule C will undergo nitration to yield a meta-product that is the MAJOR product. TRUE or FALSE c. The rate of meta-product formation...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
D Question 4 1 pts What is the formal charge on either of the singly bonded O's in the structure S-O D Question 5 1 pts Two possible Lewis structures for CS2 are shown below. Which resonance structure is more likely to dominate the electronic distribution in the CS2 molecule? O Both are weighted equally. O Neither is a correct Lewis structure.
D Question 3 6 pts Short Answer 3. (6 pts) An alpha particle is simply a helium atom stripped of its electrons (i.e., it is the nucleus of a helium atom, which consists of two protons and two neutrons). If this alpha particle is accelerated through a potential difference of 588 V, how much kinetic energy does it gain in units of eV (electron volts)? Answer to at least three significant figures. 1 eV = 1.6 x 10-19 J and...
Question 7 [1.5 pts] Which one of the following statements about Reaction #6 is correct? Reaction #6 Н D CH2CI2 NaN3 E OThe major organic product arises from front face attack by the N3 anion at atom D O The major organic product arises from front face attack by the N3 anion at atom E OThe major organic product arises from back face attack by the N3 anion at atom D The major organic product arises from back face attack...
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