(a)
Interpretation:
The reaction of Fischer esterification to form the given ester is to be shown.
Concept introduction:
The reaction of
(b)
Interpretation:
The reaction of Fischer esterification to form the given ester is to be shown.
Concept introduction:
The reaction of carboxylic acid and alcohol in the presence of an acid catalyst produces ester and water as a side product is known as Fischer esterification. The catalyst is used to speed up the reaction. The mechanism of reaction starts with an addition of a proton. An acid catalysed hydrolysis of an ester is the reverse reaction of Fischer esterification.
(c)
Interpretation:
The reaction of Fischer esterification to form the given ester is to be shown.
Concept introduction:
The reaction of carboxylic acid and alcohol in the presence of an acid catalyst produces ester and water as a side product is known as Fischer esterification. The catalyst is used to speed up the reaction. The mechanism of reaction starts with an addition of a proton. An acid catalysed hydrolysis of an ester is the reverse reaction of Fischer esterification.
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Chapter 20 Solutions
EP ORGANIC CHEMISTRY -MOD.MASTERING 18W
- How would you synthesize triphenylmethanol starting from the following class of compound? Draw the structure of the starting compound and list the other reagent(s) used for the reaction. a. Ester b. Ketone c. Aldehyde eduction dd H IT More "0" Oxidiz strong leak Reduarrow_forwardPredict the products of the reaction of phenylaceetaldehyde , C6H5CH2CHO, with a. NaBH4 the H3O+ b. Aqueous acidic CrO3 c. NH2OH d.CH3MgBr then H3O+ e, CH3OH,H+ catalystarrow_forwardWhich could explain the stronger acidity of phenols compared to alcohols. Why? a.pi-electron delocalization b.steric effect c.hydrogen bonding d.hyperconjugationarrow_forward
- Write the equation for the following reactions. Name and write the structure of the major product formed in the given reaction. a. isopentylbromide + NH3(aq) b. N,N-dimethylaniline + acetic acid c. ethyl-n-butylamine + benzyl chloride d. ethylpropylamine + benzoyl chloride e. isopentylamine + acetoyl chloridearrow_forward3. Draw the structures of the products when the given anhydride is treated with each of the given reagents. If no reaction occurs, indicate no reaction. a. NaOCH3 b. NaOH c. NaCl d. NaNH2arrow_forwardIn biochemical reactions, decarboxylation of carboxylic acids typically takes place for-keto carboxylic acids. Justify a rational why nature opted for-keto carboxylic acid decarboxylation. Among the following types of biochemical reactions, ester hydrolysis, rearrangement reactions, water elimination reactions, and anhydride hydrolyses, which one is the most favorable one. Rank the above reactions types in the order of being the most to least favorable reactionarrow_forward
- TRUE OR FALSE 15.In Fehling’s test, the theoretical product after an aldehyde is mixed with Fehling’s solution is alcohol. 16.Iodoform, which has a molecular formula of CH3I, is indicative that ketomethyl group is prresent. 17.Based on the physical property, hydroquinone has a lower boiling point compared to catechol. 18.When FeCl3 is used in visualizing aspirin in tin layer chromatography, the resulting spot is in red color.arrow_forwardOn synthesis of esters via nucleophilic acyl substitution: Write the chemical equation involved in the reaction between the excess acid and NaHCO3. Given this, briefly explain why NaHCO3 is preferred over NaOH for the neutralization of excess acid. Also, explain how excess alcohol was eliminated from the crude product.arrow_forwardGive the products formed when benzaldehyde and benzoic acid are treated with the given reagents. h. 2 moles CH3OH, H+i. CH3MgCl, then H2O, H+j. H2Oarrow_forward
- 4. WHAT ARE IMINES? HOW ARE THEY FORMED? 5. WHAT IS GRIGNARD REACTION? WHAT CONSTITUTES A GRIGNARD REAGENT? 6. WHAT IS KETO-ENOL TAUTOMERIZATION?arrow_forwardWhich of the following sets of reagents would not be an acceptable method for the preparation of ethylacetate? A. acetic acid, ethanol, and an acid catalyst B. Sodium acetate and ethanol C. Acetic anhydride and ethanol D. Sodium acetate and ethyliodidearrow_forwardWrite TRUE if the underlined word/phrase makes the statement correct. Otherwise, write the correct WORD/PHRASE that will make the statement true. a. 2-phenylacetaldehyde is soluble with concentrated sulfuric acid due to acid-base neutralization. b. 2-phenylacetic acid has a solubility classification of A2, which means it is soluble in 5.O%NaOH and insoluble in 5.O% NaHCO3. c. Scratching the inner sides of the beaker to begin recrystallization is advised for unsaturated solutions. d. Washing with hot solvent eliminates adhered mother liquor and avoids crystal dissolution. e. To extract a nonpolar organic compound using solvent extraction, the extracting solvent must be nonpolar, and the washing solvent must be also nonpolar. f. Addition of 6.0 M NaCl extracts saponins by converting them to their salt form. g. The stationary phase in the paper chromatography experiment is the filter paper. h. When the spots have low concentration, they will not be observed as visible spots in the…arrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
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