Which of the following alkyl halides is most likely to undergo rearrangement by a methyl shift in an SN1 reaction?

Q: SCH, (a) H3C" CH3 OCH3 (b) H3C CH3 OCH3 Br (с) OCH3 ČH3 ČH3

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Q: . Which alkyl halide out of the following may follow both SN1 and SN2 mechanism? CH3-X (CH3)3C-X…

A: The correct answer is (CH3)2CH-X. Reason : We know that SN1 reactions proceed through the formation…

Q: A hydrogen and the leaving group have to be antiperiplanar in which reaction? O E2 O inversion O SN1…

A: The leaving groups and hydrogen leave when from the given organic substrate if the reaction goes…

Q: Which of the following alkyl halides would be more reactive in an E2 elimination reaction?

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Q: which substrates undergo a carbocation rearrangement in an SN1 mechanism?

A: The SN1 mechanism has 2 steps -  1- formation of carbocation 2- attack of nucleophile

Q: In general, which of the following statements about nucleophilic reactions are true ? Select all…

A: The reactions in which an electron rich nucleophile attacks a positively charged electrophile and…

Q: Consider the following reaction below. Which of the following choices has the con sequences of…

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Q: A hydrogen and the leaving group have to be antiperiplanar in which reaction? O SN1 O inversion O…

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Q: Which alkyl halide in each of the following pairs will react faster in an SN2 reaction with OH?…

A: SN2 reaction: It is nucleophilic substitution reaction in which attacking of nucleophile and removal…

Q: Rank the following compounds in order of increasing SN2 reaction rate with a good nucleophile.…

A: We have to rank the given compounds in order of increasing SN2 reaction rate with a good…

Q: In Friedel-Crafts alkylation, which compound below cannot be an electrophile? Br Br Br Br D A B

A: An electrophile is a chemical species produced by the removal of the leaving group with its bonding…

Q: The best reagents for accomplishing the above transformation are:

A: We have to tell which option is correct from given choices of options

Q: OH (TM) (CH₂)4CH3 (SM) H

A: Here we have to synthesize the following given target compound from the given starting material by…

Q: In each of the following reactions, the aromatic ring has just one chemically distinct, aromatic H,…

A: The given reactions are represented as follows:

Q: Draw an alkyl halide that would undergo an SN2 reaction to yield this product under the conditions…

A:

Q: When performing a nucleophilic substitution reaction and not knowing the structure of the starting…

A: Given: In Nucleophilic reaction if the structure of  Reactant or product is not known To find: how…

Q: How does changing the leaving group from I− to Br− affect the rate of an E2 reaction?

A: E2 mechanism occurs is a single step concerted reaction with one transition state. The rate at which…

Q: Circle the major product in the E1 reaction of the following alkyl halides

A:

Q: Which of the following is not a characteristic of Sn1 reactions? O the electrophilic carbon…

A: SN2 reaction proceeds through: 1. Polar protic solvent 2. Forms carbocation as an intermediate 3.…

Q: Br Br II Order of increasing reactivity

A: Given that : We have to explain the observed rate of reaction for the following compounds in an SN1…

Q: SN1 reactions undergo carbocation rearrangments, but E1 reactions do not because the carbocation…

A: The given statement has to be given as true or false,

Q: Select the alkyl halides that cannot undergo an E2 reaction. H Br H -CH3 CI CH3 CH3 CH3 H CH3CH₂ XX…

A:

Q: What series of synthetic steps could be used to carry out the transformation shown below?

A: We have to carry out the given transformation.

Q: Show how you might synthesize this compound from an alkyl bromide and a nucleophile in an SN2…

A: This reaction is carried out in polar aprotic solvent like DMSO

Q: Which of the following reacts fastest with methanol by the SN1 mechanism?

A: Tertiary alkyl bromide is the alkyl bromide in which carbon atom bearing bromine atom is attached to…

Q: Which of the following can undergo E2 Elimination? Br. Br. Br Br В B&D A & C

A: Elimination reaction takes place when two atoms are removed from one molecule . At first H atom…

Q: Draw one SN1 reaction that gives two diastereomers (show both), one that gives a racemate, and…

A: SN1 reactions proceed via the formation of carbocation intermediate which is planar. The incoming…

Q: Which carbon/s of the following compound will give the most electrophilic substitution product?

A:

Q: Which of the following reactions often competes with the SN2 reaction needed to make an ylide from…

A: The correct option is (b) i.e. E2 mechanism.

Q: In an Sn2 reaction which one of these would be the poorest leaving group

A: Option 2 should be the correct answer Good leaving groups are the weak bases which tend to leave…

Q: Which is the correct order of reactivity for the following alkyl bromides in an El reaction?

A: Given : structure of alkyl halide.  Reactivity of alkyl halide is directly proportional to the…

Q: Rank the relative rates of the following alkyl halides in an E1 reaction.

A: Elimination reaction of alkyl halide: Alkyl halide gives an elimination reaction by reacting with a…

Q: Which is the best method for carrying out the following two-step transformation (as shown in…

A:

Q: Which one of these provides the strongest nucleophile in an SN2 reaction? a) HC=N b) NaC=N c) NH3 d)…

A: The nucleophilicity of the above mentioned compounds depends on the extent of the dissociation of…

Q: Explain why 1-bromo-2,2-dimethylpropane has difficulty undergoing both SN2 and SN1 reactions. . Can…

A: During SN1 reaction, carbocation intermediate is formed. During SN2 reaction involves the attack of…

Q: Which of the following nucleophilic substitution mechanisms would produce a mix of stereoisomeric…

A:

Q: Choose the member of each pair that will react faster by the SN1 mechanism.(a)…

A: SN1  Unimolecular nucleophilic substitution reaction. The reaction takes place in two steps. First…

Q: What are the conditions needed in a synthesis to promote an SN1 type of reaction? For example do we…

A: SN1 reaction is a nucleophilic substitution reaction in which the rate determining step depends on…

Q: .CI .CI aq. HBr 65 °C HO. Br

A: The reaction taking place is given as,

Q: Select the member of each pair that undergoes SN1 solvolysis in aqueous ethanol more rapidly

A: Given:

Q: Predict the major product in each of the following reactions and show if it originated from an SN1,…

A: Alkyl halides undergo substitution reactions absence of base, where as in presence of strong base…

Q: Which site on the benzene derivative shown below is the most likely to undergo electrophilic…

A: Since attacking species is a electrophile so that the site on which it attacks must be neutral or…

Q: Which of the following alkyl halides undergoes the fastest SN2 reaction? 1-iodohexane 1-fluorohexane…

A: This question belong to nucleophilic substitution reaction. Nucleophilic substitution reaction…

Q: SN2 reactions takes place with inversion of configuration, while SN1 reaction takes place with…

A: An organic problem based on substitution reactions, which is to be accomplished.

Q: Provide the necessary reagents to accomplish the following transformation. CH,Br CH2OH `CH2CH3…

A: A reaction can take place by the reaction between reactants and by crossing the minimum energy…

Q: Which of the following SN2 nucleophiles will not directly add one or more carbons to the carbon…

A:

Q: Rank the following compounds in order of decreasing SN1 reactivity?

A: carbocation intermediate stability order :  3°>2°>1°

Q: Noted secondary alkyl halides won't survive with strong baisc enolate such as ketone enolate due to…

A: Both the reactions can be carried out and we can get the desired product by following two key…

Q: Explain why a diazonium group on a benzene ring cannot be used to direct an incoming substituent to…

A: Generally, the electron withdrawing substituent present in benzene ring can direct an incoming…