Crossed Aldol Condensation Practice Problems

Give the synthesis of the following molecule using cyclopentanone and any other reagent necessary.

Write the complete mechanism of base-catalyzed condensations followed by dehydration between formaldehyde and butanal.

Write the complete mechanism of  base-catalyzed condensations followed by dehydration between p-nitobenzaldehyde and 3-methylbutanal.

Determine the possible major product of base-catalyzed aldol condensation followed by dehydration between p-nitrobenzophenone and acetaldehyde.

Determine the possible major product of base-catalyzed aldol condensation followed by dehydration between acetone and benzaldehyde.

Give the possible major product of the given reaction. 

Draw the arrow-pushing mechanism for the reaction shown below. 

Predict the product(s), both before and after dehydration, of the crossed aldol condensation reaction below. (Ignore stereochemistry.)

Suggest the plausible product(s) for the crossed aldol condensation reaction below, showing both the products before and after dehydration. (Ignore stereochemistry.)

Determine the plausible product(s) for the crossed aldol condensation reaction below, showing both the products before and after dehydration. (Ignore stereochemistry.)

Propose the plausible synthesis using crossed Claisen condensations of the following esters.