Single Choice

Choose the correct answer among the alternatives given : 2-Chloro-2methylpropane on reaction with alc. $$KOH$$ gives X as the product , X is ?

Abut-2-ene
B2-methylbut-1-ene
C2-methylprop-1-ene
Correct Answer
D2-methylbutan-2-ol

Solution

When the reaction is carried out with KOH, the reaction will proceed via $$S_N2 $$ pathway. As the polarity of solvent decreases $$S_N1$$ pathway is not favored. Because stabilization carbocation via salvation is not possible. So via $$S_N2 $$ pathway, complete inversion of configuration occurs. The product formed will be 2-methylprop-1-ene.

SIMILAR QUESTIONS

Haloalkanes and Haloarenes

$$2$$-Bromo pentane when treated with alc. $$KOH$$ yields a mixture of three alkenes. Identity which is predominant ?

Haloalkanes and Haloarenes

Heterolysis of a carbon -chlorine bond produces ?

Haloalkanes and Haloarenes

Alkyl halides reactivity order in unimolecular elimination reactions $$(E^{1})$$ is:

Haloalkanes and Haloarenes

How will you convert the following ? Isopropylbromide to propene

Haloalkanes and Haloarenes

Heating of 2-chloro-1-phenylbutane with $$EtOK/EtOH$$ gives $$X$$ as the major product. Reaction of $$X$$ with $$Hg(OAc)_2/H_2O$$ followed by $$NaBH_4$$ gives $$Y$$ as the major product. $$Y$$ is :

Haloalkanes and Haloarenes

Heterolysis of a carbon -chlorine bond produces ?

Haloalkanes and Haloarenes

The ease of dehydrohalogenation for different halogens is in the order:

Haloalkanes and Haloarenes

What are the products of dehydrohalogenation of 2- iodopentane?

Haloalkanes and Haloarenes

a) Write the equations for the steps in $$S_N1$$ mechanism of the conversion of teri-Butyl bromide into tert-Butyl alcohol. b) Explain Fitting reaction. c) Name the reagent used in the dehydrohalogenation of haloalkanes.

Haloalkanes and Haloarenes

A mixture of 1-chloropropane and 2-chloropane when treated with alcoholic $$KOH$$ gives:

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