What is the limiting reagent in the synthesis of dibenzalacetone?
Acetone is the limiting reagent because it produces the least dibenzalacetone. Therefore, the moles of the limiting reagent is 0.025, and the mole of the product is 0.025.
What is the nucleophile in aldol condensation reaction to form dibenzalacetone?
In this reaction, two molecules of benzaldehyde (aldehyde) are condensed with one molecule of acetone (ketone). Acetone acts as a nucleophile which adds to the carbonyl carbon of benzaldehyde).
Is dibenzalacetone soluble in water?
Dibenzylideneacetone or dibenzalacetone, often abbreviated dba, is an organic compound with the formula C17H14O. It is a pale-yellow solid insoluble in water, but soluble in ethanol. Dibenzylideneacetone is used as a component in sunscreens and as a ligand in organometallic chemistry.
Is dibenzalacetone a ketone?
The resulting dibenzalacetone contains a ketone and two alkene functional groups, that are conjugated. The dibenzalacetone product will be characterized by melting point and TLC analysis, and the percent yield will be determinied.
What is the theoretical yield of dibenzalacetone in your synthesis?
If the theoretical yield is 1.998 mmols, multiplying this by the molecular weight of the product dibenzalacetone gives the theoretical yield as a mass: (0.001998 mols x 234.18 g/mol) = 0.468 g.
How is dibenzalacetone synthesized from ethanal?
23. The Aldol Condensation: Synthesis of Dibenzalacetone A. Introduction In an aldol condensation, two molecules of aldehyde or ketone are joined together along with the loss of water. For example, in the aldol condensation shown in figure 1, two molecules of ethanal are reacted to produce an a,b-unsaturated aldehyde and water.
What is the molecular formula of 2-ethylanthraquinone?
2-Ethylanthraquinone PubChem CID 6772 Structure Find Similar Structures Chemical Safety Laboratory Chemical Safety Summary (LCSS Molecular Formula C16H12O2 Synonyms 2-Ethylanthraquinone 84-51-5
How do you make benzaldehyde acetone solution?
About 10 ml (10.4 gm) of benzaldehyde and 4 ml of pure acetone is thoroughly mixed with 10 ml of methylated spirit in a conical flask or wide mouthed bottle. 2 ml of 10% aqueous sodium hydroxide solution is diluted with 8 ml of water, and this dilute alkali solution is added to the former solution.
What is the percent yield of dibenzal-acetone?
The percent yield of dibenzal-acetone is 52.17% obtained as pale yellow crystals, m.p. 112°. Mann F. G., Saunders B. C., Practical Organic Chemistry, 4th Edition, Dorling Kindersly.