Which of the following compounds would be major product from aldol condensation of 6 Oxoheptanal?

1-acetylcyclopentene
In theory, the intramolecular aldol reaction of 6-oxoheptanal could yield the three compounds shown. It turns out, though, that 1-acetylcyclopentene is by far the major product.

What is the product of intramolecular aldol condensation reaction?

The intramolecular aldol reaction of a 1,5-diketone, 2,6-heptanedione, could possibly yield either the six-membered ring product, 3-methyl-2-cyclohexenone, or the four-membered ring product, (2-methylcyclobutenyl)ethanone. However, the cyclohexanone product is exclusively formed.

What is intramolecular condensation?

Intermolecular condensation occurs between two separate molecules, while intramolecular condensation is the union between atoms or groups of the same molecule, often leading to ring formation.

What is the purpose of aldol condensation?

Aldol condensations are important in organic synthesis, because they provide a good way to form carbon–carbon bonds. For example, the Robinson annulation reaction sequence features an aldol condensation; the Wieland-Miescher ketone product is an important starting material for many organic syntheses.

Which is a product of a condensation reaction?

A condensation reaction is a reaction between two reactants that yields one larger product and a second, smaller product such as water.

What is crossed aldol condensation?

Crossed aldol condensation is a variation of aldol condensation in which two dissimilar carbonyl compounds (each containing alpha hydrogens) undergo the condensation reaction together. In such reactions, up to four different products may be formed.

What is an intramolecular aldol?

Intramolecular Aldol condensations happen when a single molecule contains 2 reaction aldehyde/ketone groups. When the alpha carbon of one group attacks the other, the molecule attacks itself forming a ring structure.

What is one product of a condensation reaction between two amino acids?

When two amino acids combine in a condensation reaction, a covalent bond forms between the amine nitrogen of one amino acid and the carboxyl carbon of the second amino acid. A molecule of water is then removed as a second product. Figure 25.18. 1: Amino acids join together to form a molecule called a dipeptide.

Which class of compound is an example of a carbonyl compound?

Carbonyl compounds Other organic carbonyls are urea and the carbamates, the derivatives of acyl chlorides chloroformates and phosgene, carbonate esters, thioesters, lactones, lactams, hydroxamates, and isocyanates. Examples of inorganic carbonyl compounds are carbon dioxide and carbonyl sulfide.