Which of the following carbocations is (are) likely to undergo rearrangement through a hydride shift? 886 CH2 CH3 CH3 II

Q: Which of these options rank the following carbocation in order of increasing stability. న కాు O XYZ…

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Q: Which of the following carbocations is least likely to rearrange? +) A B D

A: Carbocation rearrangement takes place where there is a chance of transforming a less stable…

Q: Which of the following is the most likely structure of the following carbocation after rearrangment…

A:

Q: Which of the following set of alcohols can form a carbocation that is prone to…

A: Answer   4

Q: NO₂ A CI F B OMe Br C NO₂ E NO₂

A: Electron withdrawing group at para position facilates the aromatic  nucleophilic substitution…

Q: Which of the following structures exhibit sp³ hybridized nitrogen atom? H-N CH3 H3C

A: When any Alkane undergoes halogenation Reaction, then haloalkanes are formed. Haloalkanes have…

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

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Q: Which of the following constitutional isomers of C4H9Br would react the fastest in an SN2 reaction?…

A: A multiple choice question based on Aliphatic nucleophilic substitution reaction, which is to be…

Q: If a trans alkene is reacted with OsO4 in H2S, the product is: Meso compound Hoffman product…

A: Alkene are reactive in nature due to presence of double bond

Q: Which of the following carbocations would NOT be likely to undergo rearrangement? CH3 а. CH,CCH,CH,…

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Q: Which of the following carbocations are likely to rearrange by a 1,2-hydride or a 1,2-methyl shift?…

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Q: How many of the following will undergo a favourable rearrangement to a lower energy carbocation? H3C…

A: Energy order of carbocations: CH3>1°>2°>3°

Q: Which of the following set of alcohols can form a carbocation that is prone co…

A: We have to predict the alcohol that can undergo rearrangement of carbocation.

Q: Which of the following carbocations is(are) likely to rearrange? a. I b. II c. III d. II and III…

A: Rearrangement occurs due to increase the stablity of carbocation.

Q: Name the kind of sigmatropic rearrangement that occurs in the following reaction.

A: The given reaction is represented as follows:

Q: II III IV

A: Reactivity of carbocation.

Q: Which of these products is the result of a hydride shift occuring during the substitution reaction…

A: Given,  Reactant = 2-chloro-3-methylpentane  a). CH3CH2CCH2CH3               ||              CH2 b).…

Q: Which of the following carbocations is(are) likely to rearrange? CH3 CH3 CH3 CH3 CH3, OCH2 CH3 CH3…

A: Structure is given  The carbocation likely to rearrange = ?

Q: For the following reaction, looking down the indicated bond, provide the most stable Newman…

A:

Q: Draw the mechanism of the following reaction, using the curved-arrow notation to indicate the…

A: The given reaction is an example of a unimolecular substitution reaction (SN1). The hydroxy group is…

Q: (+) i) Vs (+) В A ii) CF3 +) CF3 +) Vs H2N H2N A B

A: 1)

Q: Which of the following is a sigmatropic rearrangement? *

A: A sigmatropic reaction in organic chemistry is a pericyclic reaction wherein the net result is one…

Q: Which of the following organic molecules has the highest Sn1 reactivity? Br Br Br Br

A: Here we have to choose the correct option about molecule which has highest SN1 reactivity and which…

Q: Which molecule reacts fastest with ethanol by SN1 mechanism? 1-bromopentane 3-bromopentane…

A: Given molecules: 1-bromopentane 3-bromopentane 2-bromo-2-methylbutane 1-bromo-2,2-dimethylpropane To…

Q: which of the following alkenes will most likely undergo a hydride shift when reacting with HCl?

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Q: When an unsymmetrical Alkenes such as propane is treated with N-bromosuccinimide in aqueous dimethyl…

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Q: Br CF3 CH3 OCH3 6888 b C d

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Q: 4. Predict whether each of the following substitution reactions is likely to be SN 1or SN2. CI OAC…

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Q: Which of the following compounds is the most reactive towards electrophilic aromatic subsitition by…

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Q: rank the following compounds in order of their expected reactivity toward SN2 reaction CH3Br…

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Q: This substituent deactivates the benzene ring towards electrophilic substitution but directs the…

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Q: A nucleophilic substitution reaction is shown below. Identify the nucleophile. I A) CH:S- B) Na II…

A: Nucleophile:  In a chemical reaction a nucleophile is a species that forms bonds with electrophiles…

Q: c) For the following substituted benzenes, please rank their relative rates of reactivity in an EAS…

A: Electrophilic aromatic substitution reactions are organic reactions wherein an electrophile replaces…

Q: Which of the following carbocations is (are) likely to undergo rearrangement through a hydride…

A:

Q: 3. Which of the following is most likely to rearrange via 1,2-hydride shift to form a more stable…

A:

Q: (4B) Carbocation Stability: Rank the following carbocations in order of stability and briefly…

A: Carbocation is species in which carbon bears positive charge.

Q: Which of the following compounds has the greatest tendency to undergo rearrangement during SN1…

A: SN1 reaction involes the two step reaction first is formation of stable carbocation and second is…

Q: 5. Outline a synthesis for each of the following transformations. If a mixture of ortho and para…

A: Ortho and para directing group are electron-donating group. Meta-directing group are electron…

Q: Which of the following set of alcohols can form a carbocation that is prone to…

A:

Q: Which of the following reaction scheme leads to the synthesis of 4,4-Dimethylhex-2-yne? ... 1)…

A: Option A will be correct.

Q: Addition of HBr to which of the following alkenes will lead to a rearrangement?

A: Addition of HBr to alkene take place according to the Markovnikov's Rule ( Addition of H+ take place…

Q: Which of the following alkyl halides would likely undergo rearrangement during an SN1 reaction to…

A:

Q: How many of the following will undergo a favourable rearrangement to a lower energy carbocation? H3C…

A: We know the stability of carbonation is tertiary> secondary> primary.Again if a carbonation…

Q: Predict the major product of the following radical monohalogenation reaction. CH3 H3C CH3

A: Answer is explained below. The major product of the reaction is as follows:

Q: Which of the following transformations is an example of a reduction? A CI MgCl Br R1 B R-C=C-R2 R2…

A: Option 3. None of the shown reactions is a reduction reaction.

Q: CH, CH A CH CH3 В CH3 1)AICI, CH3 H3C CH3 CH3 2) Н,0 C CH3 CH3 +

A: Friedel-Craft alkylation reaction:When the benzene reacts with an alkyl halide in presence of Lewis…

Q: Predict the major bromination product for each of the following reactions. ÇH3 CH3 CH3CCH,CHCH, Br2…

A: When alkanes react with molecular bromine at high temperature, it causes substitution of one of the…

Q: Rank the following in order of increasing reactivity toward electrophilic substitution (start with…

A: Electrophilic substitution will occur in benzene rings whose electron density is increased by the…

Q: which among the following alkenes will most likely undergo a hydride shift when reacting with HCl?

A: In compound Option B when reaction with HCL , already form tertiary carbonation ,no need to any…

Q: An Ochem student wanted to predict the major product of an alkene addition reaction using the…

A: WHen alkene reacts with acid in the presence of water then alkene attacks on H+ and generate…

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.