To work out the theoretical yield of the preparation of dibenzalacetone, it is useful to first have a reaction equation complete with molar ratios. Using the following equation, what is the correct stoichiometric ratio of acetone:benzaladehyde to yield dibenzalacetone? i Acetone Benzaldehyde Dibenzalacetone 2:1 1:2 1:1 K

To work out the theoretical yield of the preparation of dibenzalacetone, it is useful to first have a reaction equation complete with molar ratios. Using the following equation, what is the correct stoichiometric ratio of acetone:benzaladehyde to yield dibenzalacetone? i Acetone Benzaldehyde Dibenzalacetone 2:1 1:2 1:1 K

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter14: Aldehydes And Ketones

Section: Chapter Questions

Problem 14.51E: Identify the most important aldehyde and ketone from Section 14.4 on the basis of amount used, and...

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Suggest chemical tests to differentiate the following pairs of organic compounds given the chemical reaction for the positive sign. Write the observable change for the positive sign of reaction and the chemical reaction for the compound that will test positive. 2-pentanone acetophenone phenol OH 3-pentanol OH OH diphenylmethanol Butanal propiophenone phenylmethanol pentanol benzophenone H OH OH Test: Positive Sign: Test: Positive Sign: Test: Positive Sign: Test: Positive Sign: Test: Positive Sign: Compound which will Test Positive
What is the overall % yield of triphenylmethane from benzophenone given the percentage yield of each step of the reaction sequence as follows? Give only two significant digits. If the answer is a whole number with two digits, do not include the decimal. 66% 70% 62% benzophenone → benzopinacol → benzopinacolone triphenylmethane Answer:
Propose a method to separate a mixture containing phenol, benzoic acid, naphthalene, and p-nitroaniline. Phenol is soluble in sodium hydroxide solution but insoluble in neutral water or sodium bicarbonate solution. Benzoic acid is soluble in either sodium hydroxide or sodium bicarbonate solutions. Write out the structures of the molecules in your scheme.
Aldehydes and ketones react with one molecule of an alcohol to form compounds called hemiacetals, in which there is one hydroxyl group and one ether-like group. Reaction of a hemiacetal with a second molecule of alcohol gives an acetal and a molecule of water. We study this reaction in Chapter 16. Draw structural formulas for the hemiacetal and acetal formed from these reagents. The stoichiometry of each reaction is given in the problem.
Identify the most important aldehyde and ketone from Section 14.4 on the basis of amount used, and list at least one characteristic for each that contributes to its usefulness.
Using your reaction roadmap as a guide, show how to convert 1-bromopropane and carbon dioxide into 4-propyl-4-heptanol. You must use 1-bromopropane and carbon dioxide as the source of all carbon atoms in the target molecule. Show all reagents and all molecules synthesized along the way.
Using your reaction roadmaps as a guide, show how to convert propane into propyl propanoate. You must use propane as the source of all carbon atoms in the target molecule. Show all reagents needed and all molecules synthesized along the way.
Using your reaction roadmaps as a guide, show how to convert 4-methyl-1-pentene and carbon dioxide into 5-methylhexanoic acid. You must use 4-methyl-1-pentene and carbon dioxide as the source of all carbon atoms in the target molecule. Show all reagents and all molecules synthesized along the way.
17-33 What simple chemical test could you use to distinguish between the members of each pair of com pounds? Tell what you would do, what you would expect to observe, and how you would interpret your experimental observation. (a) Pentanal and 2-pentanone (b) 2-Pentanone and 2-pentanol
Describe or enumerate the step by step process in the laboratory preparation of benzyl alcohol from benzoic acid
Aldehydes and ketones undergo condensation reaction with 2, 4-dinitrophenylhydrazine. Write an equation for the reaction of 2, 4-dinitrophenylhydrazine with any one of the pheromones. What makes 2, 4-dinitrophenylhydrazine suitable for characterizing aldehydes and ketones?
Use a series of reactions to show how you can make 2-pentanone and 3-pentanone from 2-pentyne. Name all reactants and intermediate products formed. Indicate the type(s) of reactions required.