Which of the following would increase the proportion of a substitution reaction that proceeds via a...
Which of the following would increase the proportion of a substitution reaction that proceeds via a SN2 mechanism, rather than SN1? (choose all correct answers)
Group of answer choices
Use a less reactive nucleophile.
Use a more highly substituted alkyl halide.
Increase the concentration of the alkyl halide.
Increase the concentration of the nucleophile
Homework Answers
![Rate law for SN2 reactim: Rate = k[alkyl halide ] [ nucleophile] = [alkyl halide] F nucleophide] ↑ Rate t Rate T I = H increa](http://img.homeworklib.com/questions/6a8d2e20-6ffd-11ea-b1fe-5736e960d5c4.png?x-oss-process=image/resize,w_560)
Add Answer to:
Which of the following would increase the proportion of a
substitution reaction that proceeds via a...
Question 21 Which of the following would increase the proportion of a substitution reaction that proceeds...
Question 21 Which of the following would increase the proportion of a substitution reaction that proceeds via a S2 mechanism, rather than Sw1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile
Which of the following would increase the proportion of a substitution reaction that proceeds via a...
Which of the following would increase the proportion of a substitution reaction that proceeds via a $ 2 mechanism, rather than S, 1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile Which of the following reactions would most likely proceed via a SN 1 mechanism? (choose all correct answers) + CH3OH Br + HO- Br + CN + HBr...
Question 23 By what mechanism would the following compounds react? Br - ?? Sw1 • 512...
Question 23 By what mechanism would the following compounds react? Br - ?? Sw1 • 512 Question 21 Which of the following would increase the proportion of a substitution reaction that proceeds via a 5x2 mechanism, rather than Sw1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile
discuss the factors which influence whether a nucleophilic substitution reaction proceeds via Sn1 or Sn2
discuss the factors which influence whether a nucleophilic substitution reaction proceeds via Sn1 or Sn2
5. (a) The following is a substitution reaction using a sulfonium ion, which has a sulfur-based...
5. (a) The following is a substitution reaction using a sulfonium ion, which has a sulfur-based leaving group, rather than an alkyl halide. Four different nucleophiles were used in the substitution reaction and their rates were measured Rationalize the trend in reaction rates and indicate the dominant mechanism in each case Nu SPh2 Ph OH SH Rate 3.9 3.8 74 257 (b) (R)-2-Bromooctane was stirred with excess sodium iodide in acetone at room temperature for 2 days. Write an equation...
8) Draw a mechanism with all the proper arrows for the reaction from this experiment. Introduction...
8) Draw a mechanism with all the proper arrows for the reaction
from this experiment.
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the leaving group departs with both...
4) Can you ever have only SN2 or only SN1? Introduction Alkyl halides can be prepared...
4) Can you ever have only SN2 or only SN1?
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the leaving group departs with both electrons of its bond to...
6. Consider the following substitution reaction: (10) Pr NaN NaBr MDMSOM (a) Determine whether this reaction...
6. Consider the following substitution reaction: (10) Pr NaN NaBr MDMSOM (a) Determine whether this reaction proceeds via an SN1 or SN2 process. (b) Draw the mechanism of this reaction. (c) What is the rate equation of this reaction? (d) Would the reaction occur at a faster rate if the concentration of cyanide were doubled? (e) Draw an energy diagram of the reaction above.
For the following reaction, the cyanide nucleophile could reasonably substitute at either of two positions. One...
For the following reaction, the cyanide nucleophile could
reasonably substitute at either of two positions. One mechanism
produces 4-cyanoheptane and dimethylsulfide. The competing
mechanism produces 4-methylthioheptane and acetonitrile (CH3CN). In
practice, only one substitution is observed. Choose the most likely
mechanistic pathway for this reaction and draw both of the
products. Select whether it proceeds via an SN1 or SN2
mechanism.
This is a Mixed question/ It is worth 4 points / You have unlimited attempts / There is a...
CIC-CH.CH $$ 0,09 ( -CCHCH, K CANON D) IV 2, whicen er falowing the A) B)...
CIC-CH.CH $$ 0,09 ( -CCHCH, K CANON D) IV 2, whicen er falowing the A) B) II CITI 21) Which of the following alkenes is the most stable? or more com B) II D) IV 22) For the following reaction, use the identity of the alkyl halide and nucleophile to determine which substitution mechanism occurs. Then determine which solvent affords the faster reaction. OH + BO • ное но A) SN 2, H20 B DMF ) SN1, H20 SN1, DMF...
Question 21 Which of the following would increase the proportion of a substitution reaction that proceeds via a S2 mechanism, rather than Sw1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile
Which of the following would increase the proportion of a substitution reaction that proceeds via a $ 2 mechanism, rather than S, 1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile Which of the following reactions would most likely proceed via a SN 1 mechanism? (choose all correct answers) + CH3OH Br + HO- Br + CN + HBr...
Question 23 By what mechanism would the following compounds react? Br - ?? Sw1 • 512 Question 21 Which of the following would increase the proportion of a substitution reaction that proceeds via a 5x2 mechanism, rather than Sw1? (choose all correct answers) Use a less reactive nucleophile. Use a more highly substituted alkyl halide. Increase the concentration of the alkyl halide. Increase the concentration of the nucleophile
5. (a) The following is a substitution reaction using a sulfonium ion, which has a sulfur-based leaving group, rather than an alkyl halide. Four different nucleophiles were used in the substitution reaction and their rates were measured Rationalize the trend in reaction rates and indicate the dominant mechanism in each case Nu SPh2 Ph OH SH Rate 3.9 3.8 74 257 (b) (R)-2-Bromooctane was stirred with excess sodium iodide in acetone at room temperature for 2 days. Write an equation...
8) Draw a mechanism with all the proper arrows for the reaction
from this experiment.
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the leaving group departs with both...
4) Can you ever have only SN2 or only SN1?
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the leaving group departs with both electrons of its bond to...
6. Consider the following substitution reaction: (10) Pr NaN NaBr MDMSOM (a) Determine whether this reaction proceeds via an SN1 or SN2 process. (b) Draw the mechanism of this reaction. (c) What is the rate equation of this reaction? (d) Would the reaction occur at a faster rate if the concentration of cyanide were doubled? (e) Draw an energy diagram of the reaction above.
For the following reaction, the cyanide nucleophile could
reasonably substitute at either of two positions. One mechanism
produces 4-cyanoheptane and dimethylsulfide. The competing
mechanism produces 4-methylthioheptane and acetonitrile (CH3CN). In
practice, only one substitution is observed. Choose the most likely
mechanistic pathway for this reaction and draw both of the
products. Select whether it proceeds via an SN1 or SN2
mechanism.
This is a Mixed question/ It is worth 4 points / You have unlimited attempts / There is a...
CIC-CH.CH $$ 0,09 ( -CCHCH, K CANON D) IV 2, whicen er falowing the A) B) II CITI 21) Which of the following alkenes is the most stable? or more com B) II D) IV 22) For the following reaction, use the identity of the alkyl halide and nucleophile to determine which substitution mechanism occurs. Then determine which solvent affords the faster reaction. OH + BO • ное но A) SN 2, H20 B DMF ) SN1, H20 SN1, DMF...
Most questions answered within 3 hours.
-
Linear programming is an excellent technique yet is not applied
nearly enough in the “real world.”...
asked 7 minutes ago -
What three alkenes yield 3-methylpentane on catalytic
hydrogenation?
asked 7 minutes ago -
In JAVA Create a program with an array with the following
data:
50 12 31 76...
asked 10 minutes ago -
Using a hormone of the hypothalamic-anterior pituitary axis,
describe or diagram how negative feedback loops regulate...
asked 8 minutes ago -
1,1-dimethylcyclorohexane reacts with single bromine atom
asked 31 minutes ago -
The completed Lewis structure of CO2 contains a total
of 0,1,2,3,4,5,6,7,8 covalent bonds
and 0,1,2,3,4,5,6,7,8 lone pairs.
NOTE:...
asked 37 minutes ago -
A 0.0510 M solution of an organic acid has an
[H+] of 7.50×10-4M .
What is...
asked 34 minutes ago -
what is the profit-maximizing output condition that a
monopolistically competitive firm must satisfy? a) price charged...
asked 39 minutes ago -
Consider the set of ordered pairs shown below. Assuming that the
regression equation is y=3.513+0.429x and...
asked 1 hour ago -
1. (A) Write two
structural (constitutional)
isomers of C4H8F2?
Please show all of
the
asked 1 hour ago -
Objective: Practice converting a Boolean logic
expression into it’s truth table and to show the implementation...
asked 1 hour ago -
1) Name the three holes located in the greater wing of the
sphenoid bone in order...
asked 1 hour ago