For the given reaction,if the final product i | vedclass

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

Question

(B) The dehydration of butan$-2-$ol with $H^+/H_2O$ (acid-catalyzed dehydration) yields a mixture of alkenes $(X)$.Butan$-2-$ol $\xrightarrow{H^+}$ bu

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(B) The dehydration of butan$-2-$ol with $H^+/H_2O$ (acid-catalyzed dehydration) yields a mixture of alkenes $(X)$.Butan$-2-$ol $\xrightarrow{H^+}$ but$-1-$ene + but$-2-$ene (cis and trans).Thus,the mixture $X$ consists of $3$ alkenes: but$-1-$ene,cis-but$-2-$ene,and trans-but$-2-$ene.When these react with $Br_2$:$1$. But$-1-$ene gives $1,2$-dibromobutane (one chiral center,$2$ enantiomers).$2$. Cis-but$-2-$ene gives meso-$2,3$-dibromobutane ($1$ isomer).$3$. Trans-but$-2-$ene gives a racemic mixture of $(2R,3R)$- and $(2S,3S)$-$2,3$-dibromobutane ($2$ enantiomers).Total isomers = $2 + 1 + 2 = 5$ isomers of $C_4H_8Br_2$.Therefore,the number of alkenes $X$ is $3$.

For the given reaction,if the final product is a mixture of $C_4H_8Br_2$ isomers,what is the value of $X$ (the number of alkenes formed in the mixture)?

Similar Questions

In the esterification reaction of $p$-toluic acid with methanol $(CH_3^{18}OH)$,the product $A$ is:

Consider the following reactions:
$X + HCl \xrightarrow{\text{Anhydrous } AlCl_3} C_2H_5Cl$
$Y \xrightarrow{\text{Anhydrous } ZnCl_2 / HCl} C_2H_5Cl$
$Y$ can be converted to $X$ on heating with which of the following reagents?

Identify $Z$ in the series:
$CH_2 = CH_2$ $\xrightarrow{HBr} X$ $\xrightarrow[Hydrolysis, Na_2CO_3]{I_2 (excess)} Z$

What is the product obtained from the oxidation of isopropyl alcohol?

Vedclass Test Series

Exam Paper Generator

Online Exam Module