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Introduction

What sequence...

Question

What sequence of reagents is required to accomplish the following transformation?

(i)

N B S, R O O R;

(ii)

C H_{3} C H_{2} O^{-}

(iii)

N H_{2}^{-};

(iv) disiamyl borane (v)

H_{2} O_{2}, O H^{-}

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(i)

C l_{2} / h v

(ii)

O H^{-}, h e a t

(iii)

2 H C l;

(iv)

O H^{-}, h e a t;

(v)

H g S O_{4}, H_{2} S O_{4}

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(i)

N B S, R O O R; O H^{-}, D M S O

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(i)

B r_{2}, h v;

(ii) t-butoxide; (iii)

B H_{3}, T H F; H_{2} O_{2}, O H^{-}

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Solution

The correct option is C (i) $B r_{2}, h v;$ (ii) t-butoxide; (iii) $B H_{3}, T H F; H_{2} O_{2}, O H^{-}$

The sequence of reagents required to accomplish the given transformation is
(i) $B r_{2}, h v;$ (ii) t-butoxide (iii) $B H_{3}, T H F; H_{2} O_{2}, O H^{-}$

First step is the replacement of $H$ atom of alkane with $B r$ atom to form alkyl bromide. Second step is dehydrobromination to form alkene. Third step is hydroboration oxidation to form primary alcohol.

Suggest Corrections

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