Homework Answers
(9) We know that large bulky attacking species will always prefer for E2(elemination) reaction over SN2 reaction where small attacking species is required.
Since, species A is large bulky attacking group compared to species B which is a small attacking group.
Therefore, the attacking species which will favor E2 over SN2 is species A.
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Question 9 Which is the attacking species that would favor E2 over SN2? Loh A B
Which attacking species shown below would be the best choice to enforce an E2 pathway over...
Which attacking species shown below would be the best choice to enforce an E2 pathway over an SN2 pathway for the reaction below? Attacking Species? BI CH; H -¢-o CH,MgB HC-0-0 CH; (a) H (b) (c) NH OH (d) SH (1) e Which solvent(s) listed below would be satisfactory in Sn2 reactions? HzC CH DMSO CH3CH,OH o HzC. Н.С DMF I II III a. I only b. II only c. III only d. I and II e. I and III...
Which attacking species shown below would be the best choice to enforce an E2 pathway over...
Which attacking species shown below would be the best choice to enforce an E2 pathway over an Sp2 pathway for the reaction below? Attacking Species? Br H CH,MpBr HC-0 NH (a) H (b) e OH H₂C_&_• SH Els (d) (1)
give attacking species and substrate for sn2 Question 29 2 pts **WRITTEN WORK** Supply the attacking...
give attacking species and substrate for sn2
Question 29 2 pts **WRITTEN WORK** Supply the attacking species and the substrate needed to synthesize the following molecule by an SN 2 reaction. S. HTML Editor B I A - I E32 1 , ! E VE DTH 12pt Paragraph
Which substitution elimination pathway(s) is(are) favored by a high concentration of the attacking species (nucleophile base)?...
Which substitution elimination pathway(s) is(are) favored by a high concentration of the attacking species (nucleophile base)? a. Sy2/E2 b. Sy2 O CE2 d. Syi e. El f. SNIE1
1.(1 pt. each) Consider the following statements regarding Syl, SN2, E1 and E2 reactions. To which...
1.(1 pt. each) Consider the following statements regarding Syl, SN2, E1 and E2 reactions. To which mechansims, if any, does each statement apply? If the statement can be applied to more than one mechanism, indicate each mechanism. SNI a) Involves a carbocation intermediate SNIEL b) Substitution at a stereocenter give predominantly a racemic product c) Rearrangements of the carbon skeleton are possible. EL SM d) Is greatly accelerated in protic solvents of increasing polarity SN e) Is first order in...
In which of the following scenarios would you favor leasing over purchasing a car? A) The...
In which of the following scenarios would you favor leasing over purchasing a car? A) The miles that you drive each year varies significantly and is hard to predict B) The car in question is one whose value depreciates rapidly C) Repair expenses on the car are very low D) All of the above
7. Which of the following has a one-step mechanism? (5pts) a. Sn1 b. Sn2 c. E2...
7. Which of the following has a one-step mechanism? (5pts) a. Sn1 b. Sn2 c. E2 d. E1 e. Both a and c f. Both b and c g. all of the above
Question 10 Which of these equilibrium reactions would FAVOR the REACTANTS? A = CH3CH2OH + NaNH2...
Question 10 Which of these equilibrium reactions would FAVOR the REACTANTS? A = CH3CH2OH + NaNH2 <=> CH3CH20Na+ NH3 B = CH3CO2H + NaOH <= > CH3CO2Na + H20 C = HCN + NaOH < - > NaCN + H2O HCCH + NaOH <= > NaCCH + D- H20 E = All of these equilibrium reactions favor the reactants ОЕ oc OB ОА
14. Which mechanism is responsible for glucuronidation? a. Ei b. SN c. E2 d. SN2 e....
14. Which mechanism is responsible for glucuronidation? a. Ei b. SN c. E2 d. SN2 e. None of the above 15. Mathematically what is the Kow? 16. What does the Kow tell about a compound? 17. What cofactor is required for methyltransferase? a. Glucuronic acid b. S-Adenosyl methionine c. Acetic acid d. Sulfate e. Acetyl COA 18. When is radiation possibly good for us (one of two possible)? 19. Why would gel electrophoresis cell analysis be important in toxin research?...
2. Which reagent(s) would be best for this reactions? LOH E) B and D Al Br...
2. Which reagent(s) would be best for this reactions? LOH E) B and D Al Br B) Br, hy D) HBr C) NBS, heat, peroxide
Which attacking species shown below would be the best choice to enforce an E2 pathway over an SN2 pathway for the reaction below? Attacking Species? BI CH; H -¢-o CH,MgB HC-0-0 CH; (a) H (b) (c) NH OH (d) SH (1) e Which solvent(s) listed below would be satisfactory in Sn2 reactions? HzC CH DMSO CH3CH,OH o HzC. Н.С DMF I II III a. I only b. II only c. III only d. I and II e. I and III...
Which attacking species shown below would be the best choice to enforce an E2 pathway over an Sp2 pathway for the reaction below? Attacking Species? Br H CH,MpBr HC-0 NH (a) H (b) e OH H₂C_&_• SH Els (d) (1)
give attacking species and substrate for sn2
Question 29 2 pts **WRITTEN WORK** Supply the attacking species and the substrate needed to synthesize the following molecule by an SN 2 reaction. S. HTML Editor B I A - I E32 1 , ! E VE DTH 12pt Paragraph
Which substitution elimination pathway(s) is(are) favored by a high concentration of the attacking species (nucleophile base)? a. Sy2/E2 b. Sy2 O CE2 d. Syi e. El f. SNIE1
1.(1 pt. each) Consider the following statements regarding Syl, SN2, E1 and E2 reactions. To which mechansims, if any, does each statement apply? If the statement can be applied to more than one mechanism, indicate each mechanism. SNI a) Involves a carbocation intermediate SNIEL b) Substitution at a stereocenter give predominantly a racemic product c) Rearrangements of the carbon skeleton are possible. EL SM d) Is greatly accelerated in protic solvents of increasing polarity SN e) Is first order in...
7. Which of the following has a one-step mechanism? (5pts) a. Sn1 b. Sn2 c. E2 d. E1 e. Both a and c f. Both b and c g. all of the above
Question 10 Which of these equilibrium reactions would FAVOR the REACTANTS? A = CH3CH2OH + NaNH2 <=> CH3CH20Na+ NH3 B = CH3CO2H + NaOH <= > CH3CO2Na + H20 C = HCN + NaOH < - > NaCN + H2O HCCH + NaOH <= > NaCCH + D- H20 E = All of these equilibrium reactions favor the reactants ОЕ oc OB ОА
14. Which mechanism is responsible for glucuronidation? a. Ei b. SN c. E2 d. SN2 e. None of the above 15. Mathematically what is the Kow? 16. What does the Kow tell about a compound? 17. What cofactor is required for methyltransferase? a. Glucuronic acid b. S-Adenosyl methionine c. Acetic acid d. Sulfate e. Acetyl COA 18. When is radiation possibly good for us (one of two possible)? 19. Why would gel electrophoresis cell analysis be important in toxin research?...
2. Which reagent(s) would be best for this reactions? LOH E) B and D Al Br B) Br, hy D) HBr C) NBS, heat, peroxide
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