The synthesis of 3-octyne is achieved by addi | vedclass

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

Question

(D) The synthesis of $3-$octyne $(CH_3CH_2C \equiv CCH_2CH_2CH_2CH_3)$ involves the alkylation of an acetylide ion. First,$1-$butyne $(CH_3CH_2C \equi

Vedclass · Accepted Answer

$BrCH_2CH_2CH_2CH_3$ and $CH_3CH_2C \equiv CH$

Vedclass · Answer

(D) The synthesis of $3-$octyne $(CH_3CH_2C \equiv CCH_2CH_2CH_2CH_3)$ involves the alkylation of an acetylide ion. First,$1-$butyne $(CH_3CH_2C \equiv CH)$ reacts with sodium amide $(NaNH_2)$ to form the sodium butynide nucleophile: $CH_3CH_2C \equiv CH + NaNH_2 \rightarrow CH_3CH_2C \equiv C^{-}Na^{+} + NH_3$. Next,this nucleophile performs an $S_N2$ reaction with $1-$bromobutane $(CH_3CH_2CH_2CH_2Br)$: $CH_3CH_2C \equiv C^{-}Na^{+} + CH_3CH_2CH_2CH_2Br \rightarrow CH_3CH_2C \equiv CCH_2CH_2CH_2CH_3 + NaBr$. Thus,the required reagents are $1-$bromobutane and $1-$butyne.

The synthesis of $3-$octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are

Similar Questions

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

In the given reactions,identify $A$ and $B$.

Which of the following would be produced when acetylene reacts with $HCl$?

When propyne is passed through a red hot iron tube at $873 \ K$,the reaction gives a product having the molecular formula of:

The reaction sequence is given as follows:
Product $(B)$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module