Which of the following statements is correct for alkyl halide? a. Alkyl halide will always show SN1 mechanism b. As branching at carbon increases, E1 mechanism is favored as compared to SN1 mechanism
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: Step 3: Complete the resonance structure of the enolate form. Omit curved arrows. Erase Select Draw…
A: Keto-enol tautomerization: It is a chemical equilibrium between two structures keto and enol form.…
Q: Which do you think is a stronger nucleophile in an SN2 reaction-pyridine or pyrrole? Explain. H.…
A: The complete Lewis structures of the two compounds are
Q: Which alkyl halide in attached pair reacts faster in an SN1 reaction?
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Q: This is Wittig Rxn: Whatever mechanism you choose to draw is fine since you can leave the base as…
A: Wittig reaction is carried out between aldehyde or ketone and ylide to form the alkene .
Q: which is more reactive in E2 reaction
A: E2 stands for bimolecular elimination. The reaction involves a one-step mechanism in which…
Q: Label the reactive features of each molecule and then circle the nucleophile used in the reaction…
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Q: Identify which substitution mechanism best fits the following statement: The reaction proceeds…
A: A concerted reaction is a reaction in which all bond breaking and bond making occurs in single step…
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: Explain the Reaction of ROH with PBr3—An SN2 Mechanism
A: A Ncleophilic Substitution reaction in which the rate determining step involves 2 components. 1. SN2…
Q: "Drawing the Product of Inversion in an SN2 Reaction Label the nucleophile and leaving group, and…
A: Nucleophile : It should contained lone pair or negative charges. leaving group : this group will…
Q: D. Is the nucleophile strong or weak? E. Is the solvent polar protic or polar aprotic? F. What type…
A: Note: polar protic solvent and weak nucleophile and secondary alkyl halide all favors a sn1…
Q: Which benzylic halide reacts faster in an SN1 reaction? Explain.
A: The explantion for the classification stated above is as follows :
Q: Br conc. KOH
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Q: Draw a vicinal alkyl bromide that would produce the following alkene in an E2 elimination. Use a…
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Q: For each pair, predict the stronger nucleophile in the SN2 reaction (using an alcohol asthe…
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Q: Which alkyl halides has the lowest boiling point? 2. Which of the following is most likely to give…
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Q: What is the major reason why aromatic and vinyl halides do not undergo nucleophilic substitution by…
A: General SN1 mechanism involves two steps step-1 : Loss of leaving group to get stable carbocation…
Q: Which statement(s) are typically true for an SN1 reaction? Check all that apply. It occurs with…
A: in the given question SN1 reaction means- unimolecular substitution reaction 1- Alkyl…
Q: Please provide 3 possible mechanisms for bromination of trans-cinnamic acid and pyridinium…
A: trans-cinnamic acid reacts with bromine to form 2,3-dibromo-3-phenylpropanoic acid.
Q: In the E2 reaction of 2-bromopentane with sodium tert-butoxide, 1-pentene is favored over 2-…
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Q: A nucleophilic addition is not considered SN1 or SN2 because: A.) The reaction proceeds through an…
A: Given, Nucleophilic addition is not considered as SN1 or SN2. Why? SN1 stands for unimolecular…
Q: Why does increasing alkyl substitution increase the rate of an E2 reaction?
A: The increase in E2 reaction rate with increasing alkyl substitution can be rationalized in terms of…
Q: Explain why Acetonitrile (CH3CN). Is a better solvent for SN2 reactions and methanol (CH3OH) is thr…
A: A solvent plays an important role in the mechanism of the reaction. As it helps in mixing the…
Q: Which one favors E2 reaction? A) isopropoxide ion B) tert-butoxide ion C) ethoxide ion D)…
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Q: Which is the better retrosynthesis for the given target molecule? Explain, and provide a one-step…
A: E option is correct.
Q: Intramolecular reactions are also observed in Friedel-Crafts alkylation. Draw the intramolecular…
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Q: ) Show full rxns/mechanisms with major product/s Aniline with SO3 in H₂SO4 catalyst Benzoic acid…
A: Aniline with SO3 in H₂SO4 catalyst Benzoic acid with Br₂ and FeBr3 catalyst Nitrobenzene with…
Q: Show how a 1,2-shift forms a more stable carbocation from each intermediate.
A: The shift occurs in ionic species .and the shift males the carbocation more stable. In 1st…
Q: HBr can be added to an alkene in the presence of peroxides (ROOR). What function does the peroxide…
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Q: Explain why one of the following molecules will undergo an E1 elimination faster:
A: In the E1 reaction the elimination of leaving group first and then deprotonation takes place finally…
Q: Show the Reaction of ROH with SOCl2 + Pyridine—An SN2 Mechanism ?
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Q: Draw the major and minor products of the E2 elimination shown below. Ignore any inorganic…
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Q: Select the member of each pair that shows the greater rate of SN2 reaction with KN3 in acetone.
A: SN2 reaction rate depends upon the steric effect. Higher the steric hindrance, lower would be the…
Q: B. What type of elimination reaction is this: E1 or E2? Explain. C. Explain how the leveling effect…
A: Explanation of mechanism : Dehydration of alcohol in presence of acid involves three steps. 1.…
Q: Why is the mechanism shown in Figure 28 not plausible? * The reagent does not have a good…
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Q: If a solvent more polar than ethanol were used would you expect the SN1 reaction rate to increase or…
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Q: (b) Which of the following will react most slowly with cyanide nucleophile (NC-) in an Sn1 reaction?…
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Q: Intramolecular reactions are also observed in Friedel–Crafts alkylation. Draw the intramolecular…
A: Friedal-Craft alkylation: It is a kind of aromatic electrophilic aromatic substitution that occurs…
Q: How would the other substituents on metal would affect the stability of the metal alkylidenes?
A: Metal alkylidenes are the organometallic compounds that have a metal carbon double bond, and have…
Q: Rank the alkyl halides in attached group in order of increasing reactivity in an E2 reaction ?
A: E2 elimination reactions follows single step mechanism. The mechanism involves the cleavage of C-H…
Q: explain why a polar aprotic solvent speeds the rate of an SN2 mechanism
A: A polar aprotic solvent is a solvent that lacks an acidic proton and is polar. Polar aprotic…
Q: Consider the following alkyl halides: - may react with NaI to give JKL? - an alkyl iodide that…
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Q: Select the member of each pair that shows the greater rate of SN2 reaction with KI in acetone.
A: SOLUTION: Step 1: The given compounds are 1) 2-bromo pentane 2) 2-bromo-3-methylbutane.…
Q: What is the effect of a protic solvent in an SN1 reaction
A: Unimolecular substitution reaction(SN1) is a stepwise reaction and goes through the formation of a…
Q: Azulene, an isomer of naphthalene, having fused 5 and 7 membered rings, has the following orbital…
A: Azulene: It is non-benzenoid fused ring system in which 5-membered and 7-membered ring systems are…
Q: A small base like KOtBu or LDA favors the Zaitsev product in an elimination reaction whereas a…
A: There is an empirical rule which determines the major and minor product . Saytzeff and Hoffmann…
Q: b) In a polar solvent such as water, the SN1 and E1 reactions of a tertiary alkyl halide have the…
A: SN1 is a unimolecular nucleophilic substitution reaction. It is a reaction between an alkyl halide…
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…
Which of the following statements is correct for
Alkyl halide will always show SN1 mechanism
As branching at carbon increases, E1 mechanism is favored as compared to SN1 mechanism
In unimolecular reaction, increasing the temperature do not favor E1 mechanism
In most unimolecular reactions of alkyl halide, E1 reaction is favoured over SN1 reaction.
None of the above is correct
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- An SN2 mechanism takes place when 3-(bromomethyl)pentane is added to each nucleophile listed below. Which nucleophile will also require an acid-base step after the substitution step in order to produce a neutral (not charged) product? A. LiN(CH3)2 B. NaI C. KN3 D. HSCH3 (Please type answer no write by hend)Through what mechanism does this reaction primarily proceed? a. SN2 b. E1 c. E2 d. SN1For Nos. 63-70 Choose: A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison. 63. Reactivity toward Nucleophilic Addition Reaction I. FCH₂CHO II. CH3CHO
- thanks. multiple choice: 1. Which of the following is true regarding an SN1 reaction? a. It would be faster at 25 ̊ than 50 ̊ b. It would be faster in ethanol than in pentane c. Keeping the moles of reactants constant but doubling the quantity of solvent would decrease the rate by a factor of 4. d. Stereochemical inversion occurs exclusively 2. Which of the following statements is true? a. The rate determining step is always the last step in a reaction mechanism. b. The stability/reactivity principle says that the more stable of two chemicals will be more reactive c. The reactivity/selectivity principle says that the more reactive of two chemicals will be less selective. d. The activation barrier for a reaction is the difference in energy between reactants and final products. 3. Which of the following statements is FALSE? a. Optically active solutions always contain chiral molecules. b. Two diastereomers always have identical melting points c. Optically…A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison.Why is there more inversion than retention of configuration in SN1 reaction? A. The carbocation intermediate is not a planar structure. B. Approach of the nucleophile is hindered by the leaving group. C. SN1 reaction is reversible. D. Nucleophile forms a bond before the leaving group leaves. E. Reaction can never be 100% SN1, there is always some SN2 happening. Which alcohol below would undergo acid-catalyzed dehydration most readily? CH,OH OH НО А. В. C. D. НО Е. ÓH
- Why is concerted syn addition needed in the first step of X2 addition or mercurinium formation? 1.Syn addition occurs on both sides of the alkene bond to prevent cation formation and create a lower 2.energy interemdiate. 3.The alkene attacks the X2 from the top and bottom faces equally. 4.Only one face of the alkene can interact with the reagent. 5.No answer text provided.The reaction will proceed with mechanism because the secondary alkyl halide react with nucleophile. + NaOCH3 Br CH3 O a. SN2, strong O b. SN1, strong O c. SN1, weak O d. SN2, weakCan you match best nucleophile / conditions from the list that will give a successful hydrolysis reaction for each electrophile? (there's one best nucleophile / conditions for each electrophile) <List for Nucleophile / condition> a. LiAlH4; hydronium work-up b. PCC c. NaH d. CrO3 e. HOEt f. H3O+ or OH- g. H2O h. NaBH4;hydronium work-up Electrophile 1. Acid chloride 2. Acetic anhydride 3. Ester 4. Amide I'm asking again on bartleby because pther tutor gave me the right answer because I think I didn't make my question clear enough.
- A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison.Which alkynyl halide will most rapidly give a substitution product at C1 upon reaction with a nucleophile like NaSPh assuming that the mechanism is a rate-determining addition followed by an elimination? A. 1-iodobutyne B. 1-fluorobutyne C. 1-bromobutyne D. 1-chlorobutynea. HO b. NH 33. Which is a better nucleophile? a. H₂O or HO c. H₂S b. NH3 or NH₂ C. CH, CO in a better leaving group. or CH3CH₂O d. -0 or -0