Identify the major product P_3 in the followi | vedclass

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(B) $1$. Propene reacts with $NBS$ ($N$-Bromosuccinimide) to undergo allylic bromination,forming $P_1$ $(CH_2=CH-CH_2Br)$.$2$. $P_1$ reacts with $Mg$

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$CH_2=CH-CH_2-CH(OH)-CH_3$

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(B) $1$. Propene reacts with $NBS$ ($N$-Bromosuccinimide) to undergo allylic bromination,forming $P_1$ $(CH_2=CH-CH_2Br)$.$2$. $P_1$ reacts with $Mg$ in dry ether $(D.E.)$ to form the Grignard reagent $P_2$ $(CH_2=CH-CH_2MgBr)$.$3$. The Grignard reagent $P_2$ reacts with acetaldehyde $(CH_3CHO)$ followed by acidic hydrolysis $(H^+/\Delta)$ to form a secondary alcohol.$4$. The reaction is: $CH_2=CH-CH_2MgBr + CH_3CHO$ $\rightarrow CH_2=CH-CH_2-CH(OMgBr)-CH_3$ $\xrightarrow{H^+/\Delta} CH_2=CH-CH_2-CH(OH)-CH_3$ (pent$-4-$en$-2-$ol).

Identify the major product $P_3$ in the following reaction sequence:

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