The given reaction is an example of an intram | vedclass

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

Question

(D) The reaction is an intramolecular aldol condensation of $1,5-	ext{cyclooctanedione}$ in the presence of an acid catalyst $(H_2SO_4)$.$1$. Formati

Vedclass · Accepted Answer

Bicyclo[$3.3$.$0$]oct$-1-$en$-6-$one

Vedclass · Answer

(D) The reaction is an intramolecular aldol condensation of $1,5-	ext{cyclooctanedione}$ in the presence of an acid catalyst $(H_2SO_4)$.$1$. Formation of the enol: One of the carbonyl groups is protonated,and the adjacent $\alpha$-carbon loses a proton to form an enol.$2$. Nucleophilic attack: The enol double bond attacks the other carbonyl carbon,leading to the formation of a bicyclic structure.$3$. Dehydration: The resulting $\beta$-hydroxy ketone undergoes dehydration (loss of $H_2O$) to form an $\alpha,\beta$-unsaturated ketone.$4$. The final product is bicyclo[$3.3$.$0$]oct$-1-$en$-6-$one,which corresponds to option $(D)$.

The given reaction is an example of an intramolecular aldol condensation. Identify the product $(A)$ formed in the reaction:
$1,5-\text{cyclooctanedione} \xrightarrow{H_2SO_4, H_2O} (A)$

Similar Questions

The major product formed in the following reaction is:

Which of the following does not react with $NaHSO_3$ (sodium bisulphite)?

$Ph_2CH-C(=O)H \xrightarrow{\text{aqueous acid}} (A) (81\%) + \text{enol} (2\%) + \text{aldehyde} (17\%)$. Product $(A)$ of the above reaction will be:

Compound $A$ $(C_3H_6O)$ undergoes the following reactions to form $B$ and $C$. Identify $A, B$ and $C$.

For the conversion of cyclohexanone to $1-$hydroxy$-1-$methylcyclohexan$-2-$one,the correct order of reagents used is:
$(1)$ $CH_3MgBr / H^+$
$(2)$ $H^+ / \Delta$
$(3)$ $KMnO_4$ (cold dil.)
$(4)$ $CrO_3$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The given reaction is an example of an intramolecular aldol condensation. Identify the product $(A)$ formed in the reaction:$1,5-\text{cyclooctanedione} \xrightarrow{H_2SO_4, H_2O} (A)$