What is the final product,C of the following | vedclass

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

Question

(A) Step $1$: The terminal alkyne $CH_3CH_2-C \equiv CH$ reacts with $NaNH_2$ to form an acetylide ion,which then undergoes an $S_N2$ reaction with $C

Vedclass · Accepted Answer

$CH_3CH_2CH(Br)CH(Br)CH_2CH_3$

Vedclass · Answer

(A) Step $1$: The terminal alkyne $CH_3CH_2-C \equiv CH$ reacts with $NaNH_2$ to form an acetylide ion,which then undergoes an $S_N2$ reaction with $CH_3CH_2Br$ to yield $A$ ($hex-3-yne$,$CH_3CH_2-C \equiv C-CH_2CH_3$).Step $2$: The reduction of $hex-3-yne$ $(A)$ with $Na$ in liquid $NH_3$ (Birch reduction) is a stereoselective reaction that produces $trans-hex-3-ene$ $(B)$.Step $3$: The addition of $Br_2$ in $CH_2Cl_2$ to $trans-hex-3-ene$ $(B)$ is an anti-addition reaction,which results in the formation of $3,4-dibromohexane$ $(C)$.Thus,the final product $C$ is $CH_3CH_2CH(Br)CH(Br)CH_2CH_3$.

What is the final product,$C$ of the following reaction sequence?
$CH_3CH_2-C \equiv CH$ $\xrightarrow[2. CH_3CH_2Br]{1. NaNH_2} A$ $\xrightarrow{Na, NH_3(liq.)} B$ $\xrightarrow{Br_2, CH_2Cl_2} C$

Similar Questions

Which is the most suitable reagent among the following to distinguish compound $(3)$ from the rest of the compounds?
$1. CH_3-C \equiv C-CH_3$
$2. CH_3-CH_2-CH_2-CH_3$
$3. CH_3-CH_2-C \equiv CH$
$4. CH_3-CH=CH_2$

The number of structural isomers of alkyne possible for the molecular formula $C_6H_{10}$ are

In its reaction with silver nitrate,acetylene shows:

Which gas is used in metal welding?

$CH_3-CH_2-OH$ $\xrightarrow[\Delta]{Cl_2 / OH^{-}} A$ $\xrightarrow[\Delta]{Ag} B$ $\xrightarrow[1\% HgSO_4]{20\% H_2SO_4, H_2O} C$ Compound '$C$' is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

What is the final product,$C$ of the following reaction sequence?$CH_3CH_2-C \equiv CH$ $\xrightarrow[2. CH_3CH_2Br]{1. NaNH_2} A$ $\xrightarrow{Na, NH_3(liq.)} B$ $\xrightarrow{Br_2, CH_2Cl_2} C$