Textbook Question
Predict the products of the following aldol condensations. Show the products both before and after dehydration.
(c)
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25. Condensation Chemistry
Crossed Aldol Condensation
Multiple Choice
Give the structure of the aldehydes or ketones used to create the product prepared by a crossed aldol condensation reaction.
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Verified step by step guidance1
Identify the product structure from the crossed aldol condensation reaction. The product shown in the image is a compound with a furan ring and an α,β-unsaturated ketone.
Recognize that a crossed aldol condensation involves two different carbonyl compounds, typically an aldehyde and a ketone, reacting together.
Examine the product structure to determine the fragments that could have originated from the starting aldehyde and ketone. The α,β-unsaturated ketone portion suggests the presence of an enolate ion formed from a ketone.
Consider the possible aldehyde and ketone combinations that could lead to the observed product. The furan ring suggests that one of the starting materials might be a furan-based aldehyde or ketone.
Analyze the images provided to identify the structures of the aldehydes and ketones. The correct combination will be the one that, when reacted, forms the α,β-unsaturated ketone with the furan ring as seen in the product.
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