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Question
Complete the following reaction sequence by writing the structural formulae of the organic compound 'A', 'B' and 'C'.
\[\ce{Isopropyl alcohol ->[\triangle][PBr3] A ->[][NH3 excess] B}\]
Solution
\[\begin{array}{cc}
\ce{H3C - CH - OH ->[\triangle][PBr3] H3C - CH - Br ->[NH3, Excess]H3C - CH - NH2}\\
|\phantom{......................}|\phantom{..........................}|\phantom{..}\\
\phantom{.......}\ce{\underset{\text{Isopropyl alcohol}}{CH3}\phantom{.......}}
\ce{\underset{\text{Isopropyl bromide (A)}}{CH3}\phantom{.........}\phantom{}}
\ce{\underset{\text{Propan-2-amine (B)}}{CH3}}
\end{array}\]
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\[\begin{array}{cc}\ce{CH3\phantom{................}}\\
|\phantom{...................}\\
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|\phantom{...................}\\
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\end{array}\]
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\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
|\phantom{...................}\\
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|\phantom{...................}\\
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\ce{CH3}\phantom{.................}\\
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