Which of the following compounds on hydration | vedclass

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

Question

(C) The hydration of alkynes in the presence of $H_2SO_4$ and $HgSO_4$ is known as Kucherov's reaction.Ethyne $(CH \equiv CH)$ is the only alkyne that

Vedclass · Accepted Answer

$CH \equiv CH$

Vedclass · Answer

(C) The hydration of alkynes in the presence of $H_2SO_4$ and $HgSO_4$ is known as Kucherov's reaction.Ethyne $(CH \equiv CH)$ is the only alkyne that produces an aldehyde ($CH_3CHO$,acetaldehyde) upon hydration.All other terminal alkynes produce ketones due to the formation of a more stable carbocation intermediate or the specific tautomerization of the enol form.For $CH \equiv CH + H_2O$ $\xrightarrow{H_2SO_4/HgSO_4} [CH_2=CH-OH]$ $\rightarrow CH_3-CHO$.

Which of the following compounds on hydration (addition of $H_2O$) with $H_2SO_4/HgSO_4/H_2O$ gives an aldehyde as the major product?

Similar Questions

Which one of the following carbonyl compounds cannot be prepared by addition of water on an alkyne in the presence of $HgSO_4$ and $H_2SO_4$?

Identify $Z$ in the following series of reaction:
$CH_3-CH_2-OH$ $\xrightarrow[170^{\circ} C]{conc. H_2SO_4} X$ $\xrightarrow[CCl_4]{Br_2} Y$ $\xrightarrow[\Delta]{alc. KOH} Z$

Give the structure,formula and names of $2$ to $4$ carbon alkynes.

$1$-Alkyne and $2$-alkyne can be distinguished by

Ozonolysis of acetylene $(HC \equiv CH)$ gives:

Vedclass Test Series

Exam Paper Generator

Online Exam Module