The reaction CH_3-C(=O)-CH_2-C(CH_3)_2-CHO xr | vedclass

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

Question

(B) The given reactant is $CH_3-C(=O)-CH_2-C(CH_3)_2-CHO$. In the presence of $KOH$ and $H_2O$,an intramolecular aldol condensation occurs. The enolat

Vedclass · Accepted Answer

$4,4-$dimethylcyclopent$-2-$en$-1-$one

Vedclass · Answer

(B) The given reactant is $CH_3-C(=O)-CH_2-C(CH_3)_2-CHO$. In the presence of $KOH$ and $H_2O$,an intramolecular aldol condensation occurs. The enolate is formed at the $CH_2$ group adjacent to the ketone,which then attacks the aldehyde carbonyl carbon. This forms a five-membered ring. Subsequent dehydration leads to the formation of the $\alpha,\beta$-unsaturated ketone,which is $4,4-	ext{dimethylcyclopent-2-en-1-one}$.

The reaction $CH_3-C(=O)-CH_2-C(CH_3)_2-CHO \xrightarrow{KOH, H_2O} (A)$; Product $A$ is

Similar Questions

The number of molecules which give the haloform test among the following molecules is $.......$.

Draw structures of the following derivatives:
$(i)$ The $2,4-$dinitrophenylhydrazone of benzaldehyde
$(ii)$ Cyclopropanone oxime
$(iii)$ Acetaldehyde dimethyl acetal
$(iv)$ The semicarbazone of cyclobutanone
$(v)$ The ethylene ketal of hexan$-3-$one
$(vi)$ The methyl hemiacetal of formaldehyde

When acetaldehyde is heated with Fehling's solution,it gives a red precipitate of:

Which of the following is Clemmensen reduction?

Which of the following methods can be used to oxidize $Butan-2-one$ to $Propionic \ acid$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module