d. Consider the following secondary halides. Changing the leaving group from fluoride to bromide would increase the rate of which of the following mechanisms? Circle all that apply. Br SN1 S2 E1 E2
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- How will the rate of each of the attach SN2 reactions change if it is carried out in a more polar solvent?For which reaction mechanisms—SN1, SN2, E1, or E2—of thefollowing statement true? A statement may be true for one or moremechanisms. The reaction rate increases with better leaving groups.I know that E2 elimination reaction speed depends on the number of R groups attached to the leaving group, but what about if they are all equal? The leaving groups are all 2 degree, so what would be done in this case?
- What is the mechanism that leads to the circled, minor product? Is a hydrogen from one of the "branching methyl"s utilized?Which rearrangement product will form preferentially during the [1,2]-rearrangementof an R-group? Motivate.For which reaction mechanisms—SN1, SN2, E1, or E2—of thefollowing statement true? A statement may be true for one or moremechanisms. The reaction rate depends on the concentration of only the alkylhalide.
- A student proposes the following reaction mechanism for the reaction in Model 6. Which step inthis mechanism is least favorable? Explain your reasoning.Reactions are impacted by various factors that depend on the mechanism of the reaction.Some of the variables for substitution reactions are: • strength of the nucleophile • concentration of the nucleophile • leaving group ability (i.e., is it a “bad” or a “good” leaving group?In an SN2 reaction, the nucleophile forces the leaving group to leave. (This is the rate-determining step of the reaction.)In an SN1 reaction, the nucleophile does not attack until the leaving group has left. (When the leaving group leaves, this is the rate-determining step of the reaction.) Based on the information provided in this question, which factors would favor an SN2 reaction? a strong nucleophile a good leaving group a high concentration of nucleophileReactions are impacted by various factors that depend on the mechanism of the reaction.Some of the variables for substitution reactions are: • strength of the nucleophile • concentration of the nucleophile • leaving group ability (i.e., is it a “bad” or a “good” leaving group?In an SN2 reaction, the nucleophile forces the leaving group to leave. (This is the rate-determining step of the reaction.)In an SN1 reaction, the nucleophile does not attack until the leaving group has left. (When the leaving group leaves, this is the rate-determining step of the reaction.) Based on the information provided in this question, which factors would favor an SN2 reaction?Choose one or more: A.a strong nucleophile B.a good leaving group C.a high concentration of nucleophile Based on the information provided in this question, which factors would favor an SN1 reaction?Choose one or more: A.a strong nucleophile B.a good leaving group C.a high concentration…
- Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the product of this elementary step in an SN1 mechanism. Include all lone pairs. Ignore stereochemistry. Ignore byproducts.Alkyl diazonium salts (shown below) are considered "super" leaving groups; a consequence of this is that they tend to be contact explosives What quailities make alkyl diazonium salts such excellent leaving groups?Draw the major E2 elimination products from each of the attached alkyl halides.