Concept explainers
Interpretation:
Given that in preparing the prepolymer used to make epoxy resins, a bisphenol reacts with epichlorohydrin in the presence of a base. The product formed when two moles of phenol react with epichlorohydrin is to be given. And the mechanism of its formation also is to be given.
Concept introduction:
In Williomson synthesis, phenoxide ions react with alkyl or aryl halides to yield ethers. The phenoxide ion can be produced by treating the phenol with a base.
To give:
The product formed and the mechanism of its formation when two moles of phenol react with epichlorohydrin.
Trending nowThis is a popular solution!
Chapter 18 Solutions
Organic Chemistry
- Epoxy adhesives are prepared in two steps. SN2 reaction of the disodium salt of bisphenol A with epichlorohydrin forms a prepolymer, which is then cured by treatment with a triamine such as H2NCH2CH2NHCH2CH2NH2. Draw structures to show how addition of the triamine results in a strengthening of the polymer.arrow_forwardClaisen condensation between diethyl phthalate and ethyl acetate followed by saponification, acidification, and decarboxylation forms a diketone, C9H6O2. Propose structural formulas for compounds A and B and the diketone.arrow_forwardEthylene oxide is the starting material for the synthesis of 1,4-dioxane. Propose a mechanism for each step in this synthesis.arrow_forward
- Propose a synthesis for 3,5-dichloro-2-methoxybenzoic acid starting from phenol.arrow_forwardDescribe how 3-methyl-1-phenyl-3-pentanol can be prepared from benzene. You can use any inorganic reagents and solvents, and any organic reagents provided they contain no more than two carbons.arrow_forwardHow would you perform an experiment to produce cyclohexanol from cyclohexene? Describe in detail the reagents and glassware you would use including approximate amounts and concentrations of reagents. What steps would be needed to purify the cyclohexanol from the other reagents used in the reaction?arrow_forward
- Draw the products obtained by reacting a sulfonitric mixture with: 4-nitrophenol, 2,4-dinitrophenol, phenol, 4-methoxyphenol, 4-chlorophenol.arrow_forwardWhat reactions and reagents can be used to make phenol from benzene if electrophilic aromatic substitution reactions are excluded and benzene is the only source of carbon?arrow_forwardAcetal formation is a characteristic reaction of aldehydes and ketones, but not of carboxylic acids. Use retrosynthetic analysis to show how you could use a cyclic acetal protecting group in the following synthesis, then write equations for the procedure showing the necessary reagents.arrow_forward
- p-toluic acid is prepared from 3.42 grams of p-Bromotoluene. When p-Bromotoluene was mixed with dry ether, the mixture was warmed until the ether begins to boil (34.6 °C). When the reaction is almost complete, dry ice (3-4 mL in a beaker) was prepared and the mixture was poured into it. After some time, 5 mL of 6 N HCl was added. The solvent used for the recrystallization is 100 mL of 30% ethanol. The reaction equation is given on the figure. What is the actual yield? What is the theoretical yield? How many moles of p-toluic acid was produced?arrow_forwardSynthetize 3-phenyl-2-propenoic acid from benzaldehyde using whatever organic/inorganic reagents are needed. 3-phenyl-2-propenoic = 3-phenylacrylic acidarrow_forwardPropose 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.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning