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प्रश्न
How will you bring about the following conversion?
Toluene to benzyl alcohol
How the following conversion can be carried out?
Toluene to benzyl alcohol
How will you bring about the following conversion in not more than two steps?
Toluene to Benzyl alcohol
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उत्तर १
उत्तर २
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संबंधित प्रश्न
Write the structures of A, B and C in the following:
Which compound in the following pair will react faster in SN2 reaction with OH−?
CH3Br or CH3I
SN1 reactions are accompanied by racemization in optically active alkyl halides.
In a coordination entity of the type [PtCl2(en)2]2+ which isomer will show optical isomerism?
Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?
Which of the following compounds is optically active?
The increasing order of nucleophilicity would be:
The reaction of C6H5–CH=CH–CH3 with HBr produces:
Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN– is an ambident nucleophile.
Which of the compounds will react faster in SN1 reaction with the –OH ion?
\[\ce{CH3-CH2-Cl}\] or \[\ce{C6H5-CH2-Cl}\]
Compound ‘A’ with molecular formula \[\ce{C4H9Br}\] is treated with aq. \[\ce{KOH}\] solution. The rate of this reaction depends upon the concentration of the compound ‘A’ only. When another optically active isomer ‘B’ of this compound was treated with aq. \[\ce{KOH}\] solution, the rate of reaction was found to be dependent on concentration of compound and \[\ce{KOH}\] both.
(i) Write down the structural formula of both compounds ‘A’ and ‘B’.
(ii) Out of these two compounds, which one will be converted to the product with inverted configuration.
Elimination reactions (especially β-elimination) are as common as the nucleophilic substitution reaction in case of alkyl halides. Specify the reagents used in both cases.
Which of the following is the definition of chirality?
Assertion (A) : Nucleophilic substitution of iodoethane is easier than chloroethane.
Reason (R) : Bond enthalpy of C-I bond is less than that of C-Cl bond.
Arrange the following compounds in increasing order of reactivity towards SN2 reaction.
2-Bromopentane, 1-Bromopentane, 2-Bromo-2-methylbutane
Inversion of configuration occurs in ______.
Convert bromoethane to propanamine.
Discuss SN2 mechanism of methyl bromide using aqueous KOH.
Which alkyl halide from the following pair would you expect to react more rapidly by an SN2 mechanism? Explain your answer.
\[\begin{array}{cc}\ce{CH3CHCH2CH2Br}\\|\phantom{.........}\\\ce{CH3}\phantom{......}\end{array}\] or \[\begin{array}{cc}\ce{CH3CH2CHCH2Br}\\\phantom{}|\\\phantom{...}\ce{CH3}\end{array}\]
