underset{text{symmetrical Ketone}}{(A)}, xrig | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The reaction sequence is as follows:$1$. $(A)$ is a symmetrical ketone. Reduction of a ketone with $LiAlH_{4}$ yields a secondary alcohol $(B)$.$2

Vedclass · Accepted Answer

$CH_{3}-CH_{2}-C(=O)-CH_{2}-CH_{3}$

Vedclass · Answer

(C) The reaction sequence is as follows:$1$. $(A)$ is a symmetrical ketone. Reduction of a ketone with $LiAlH_{4}$ yields a secondary alcohol $(B)$.$2$. Dehydration of the secondary alcohol $(B)$ in the presence of $H^{\oplus}$ and heat $(\Delta)$ produces an alkene.$3$. For the product to exhibit diastereomerism (specifically geometric isomerism),the alkene formed must have different groups attached to the double-bonded carbons.$4$. Let's analyze option $(C)$: $CH_{3}CH_{2}C(=O)CH_{2}CH_{3}$ (Pentan$-3-$one).$5$. $CH_{3}CH_{2}C(=O)CH_{2}CH_{3} \xrightarrow{LiAlH_{4}} CH_{3}CH_{2}CH(OH)CH_{2}CH_{3}$ (Pentan$-3-$ol).$6$. $CH_{3}CH_{2}CH(OH)CH_{2}CH_{3} \xrightarrow{H^{\oplus}, \Delta} CH_{3}CH=CHCH_{2}CH_{3}$ (Pent$-2-$ene).$7$. Pent$-2-$ene exists as cis and trans isomers,which are diastereomers.Therefore,the correct reactant $(A)$ is pentan$-3-$one.

$\underset{\text{symmetrical Ketone}}{(A)}\,$ $\xrightarrow{LiAlH_{4}}(B)$ $\xrightarrow[\Delta ]{H^{\oplus }}\text{Diastereomers}$
Reactant $(A)$ is

Similar Questions

Compare the stability of the enolate formed from $A$ (cyclohexane$-1,3-$dione) and $B$ (cyclohexane$-1,4-$dione).
Which of the following statements is true?

Clemmensen's reduction will convert cyclohexanone into

Both ethanal and propanone will react with which of the following?

The correct structure of product $A$ formed in the following reaction:
$PhCHO + PhCHO \xrightarrow[in\, D_2O]{NaOD} A + PhCOO^{-}$
($Ph$ is $-C_6H_5$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$\underset{\text{symmetrical Ketone}}{(A)}\,$ $\xrightarrow{LiAlH_{4}}(B)$ $\xrightarrow[\Delta ]{H^{\oplus }}\text{Diastereomers}$Reactant $(A)$ is