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प्रश्न
How do you convert the following:
Ethanol to propanenitrile
How the following conversion can be carried out?
Ethanol to propanenitrile
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उत्तर १
\[\ce{\underset{Ethanol}{CH3 - CH2 - OH} ->[red P/Br2] \underset{Bromoethane}{CH3 - CH2 - Br} ->[KCN, aq{.} ethanol]\underset{Propanenitrile}{CH3 - CH2 - CN}}\]
उत्तर २
\[\ce{\underset{Ethanol}{CH3CH2OH} ->[P/I2, \Delta] \underset{Iodoethane}{CH3CH2I} ->[KCN/EtOH-H2O][nucleophilic substitution] \underset{Propanenitrile}{CH3CH2CN}}\]
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संबंधित प्रश्न
Discuss the mechanism of alkaline hydrolysis of bromomethane.
Give reasons for the following:
(CH3)3C–O–CH3 on reaction with HI gives (CH3)3C–I and CH3–OH as the main products and not (CH3)3C–OH and CH3–I.
Which alkyl halide from the following pair would you expect to react more rapidly by an SN2 mechanism? Explain your answer.
CH3CH2CH2CH2Br or \[\begin{array}{cc}
\ce{CH3CH2CHCH3}\\
\phantom{.....}|\\
\phantom{.......}\ce{Br}\
\end{array}\]
Which compound in the following pair will react faster in SN2 reaction with OH−?
CH3Br or CH3I
C–Cl bond length in chlorobenzene is shorter than C–Cl bond length in CH3–Cl.
What is the action of the following on ethyl bromide
alcoholic solution of potassium hydroxide.
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of ____________.
Which of the following is the correct order of decreasing SN2 reactivity?
Which of the following alkyl halides will undergo SN1 reaction most readily?
Which of the following compounds will give a racemic mixture on nucleophilic substitution by OH ion?
1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene
Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN– is an ambident nucleophile.
Which reagent will you use for the following reaction?
\[\ce{CH3CH2CH2CH3 -> CH3CH2CH2CH2Cl + CH3CH2CHClCH3}\]
Ethylene chloride and ethylidene chloride are isomers. Identify the correct statements.
(i) Both the compounds form same product on treatment with alcoholic KOH.
(ii) Both the compounds form same product on treatment with aq.NaOH.
(iii) Both the compounds form same product on reduction.
(iv) Both the compounds are optically active.
CCl4 is insoluble in water because:-
In which reaction mechanism carbocation is formed?
Racemisation occurs in ______.
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.
Convert bromoethane to propanamine.
Which one of the following chlorohydrocarbons readily undergoes solvolysis?
Assertion (A): 
undergoes SN2 reactions faster than 
.
Reason (R): Iodine is a better leaving group because of its large size.
In the light of the above statements, choose the correct answer from the options given below:
