Subjective Type

$$S_{N}1$$ reactions are accompanied by racemization in optically active alkyl halides. Why?

Solution

Carbocations are intermediate in $$S_{N}1$$ reactions. Carbocations being $$Sp^{2}$$ hybridized are palnar species, therefore, attack of nucleophile on it can occur from both front and rear with almost equal ease, giving a racemic mixture.

SIMILAR QUESTIONS

Haloalkanes and Haloarenes

Which of the following is not stereospecific?

Haloalkanes and Haloarenes

Write $$SN^1$$ mechanism for the hydrolysis of tert-butyl bromide.

Haloalkanes and Haloarenes

Explain $${ S }_{ N }{1 }$$ mechanism with an example.

Haloalkanes and Haloarenes

In a nucleophilic substitution reaction: $$R-Br+Cl^-\xrightarrow{DMF}R-Cl+Br^-$$ Which one of the following undergoes complete inversion of configuration?

Haloalkanes and Haloarenes

Which statement is correct about the above reaction?

Haloalkanes and Haloarenes

Which statement is correct about the following reaction?

Haloalkanes and Haloarenes

(-)-1-chloro-1-phenylethane in toluene racemises slowly in the presence of small amount of $$Sb{Cl}_{5}$$, due to the formation of:

Haloalkanes and Haloarenes

Which of the following halides will be most reactive in $${ SN }^{ 2 }$$ reaction and $${ SN }^{ 1 }$$ reaction, respectively ?

Haloalkanes and Haloarenes

Sec-Butyl alcohol will undergo alkaline hydrolysis in the polar solvent by:

Haloalkanes and Haloarenes

Which of the following gives $$SN^{1}$$ reaction?

Contact Details