salicylic acid is a single functional group. In methyl salicylate the benzene ring is substituted by two functional groups‚ a hydroxyl group (-OH) and an ester group (-COOCH3). In salicylic acid the ester group is replaced by a carboxylic acid group (-COOH). The process that causes the ester group to be replaced by a carboxylic acid group is an example of ester hydrolysis under strongly basic conditions. The following is a mechanism for the synthesis of salicylic acid: Procedure* - See Attached Data
Premium Functional group Carboxylic acid Alcohol
Abstract The purpose of this experiment is to synthesize isopentyl acetate via an esterification reaction between glacial acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed using sodium bicarbonate and water‚ then dried with anhydrous sodium sulfate. It was then distilled using a standard simple distillation apparatus. The percent yield of isopentyl acetate was 60.39%. This may have been low due to incomplete distillation or evaporation once
Premium Acetic acid Oxygen Ester
be found in other organisms. The purpose of this lab was to synthesize the ester isopentyl acetate via an acid catalyzed esterification (Fischer Esterification) of acetic acid with isopentyl alcohol. Emil Fischer and Arthur Speier were the pioneers of this reaction referred to as Fischer Esterification. The reaction is characterized by the combining of an alcohol and an acid (with an acid catalyst) to yield and ester plus water. In order to accomplish the reaction‚ the reactants were refluxed for
Premium Ester Laboratory glassware Oxygen
prepare the assigned ester via Fischer reaction and calculate its percent yield. Esters are organic compounds that have a distinct scent or flavor to them. They can easily be synthesized in the laboratory through the utilization of the Fischer reaction. Fischer reaction is a type of esterification technique that requires refluxing a carboxylic acid and an alcohol with the aid of an acid catalyst. In this reaction‚ the acid and alcohol reactants are in equilibrium with the ester product. To allow
Premium Ester Carboxylic acid Acetic acid
Preparation of Synthetic Banana Oil Introduction: In this lab the synthesis‚ purification‚ and characterization of isoamyl acetate‚ or banana oil‚ was determined. The synthesis was completed by a reversible esterification reaction which required the heating of glacial acetic acid and isoamyl alcohol‚ combined with a sulfuric acid catalyst in hexane. In order to increase the efficiency of the reaction‚ LeChatelier’s Principle is utilized by removing water from the products. As a result‚ the reaction
Premium Ester Acetic acid Ethanol
Experiment 2: Synthesis of Isoamyl Acetate (Banana Flavor) Paul Symon C. Manuel*‚ Katherine Merene‚ Charlene Mondelo‚ and Pamela Mallari Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract: The purpose of this experiment was to synthesize isoamyl acetate via an esterification reaction between acetic acid and isoamyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water‚ and then dried
Premium Ester Acetic acid Distillation
yuiopasdfghjklzxcvbnmqwertyuiopas Arun Kumar Arun Kumar 002329-179 Abstract Esters are important industrial compounds. Different esters have different demands in the current industry. The reaction rate of the reaction plays an important role in the production of the ester which could affect the production of the ester. Esterification is a reversible reaction and thus this affects the amount of ester produced as ester hydrolysis changes it back to its reactants. Very little data is available on
Premium Acetic acid Ester Chemical kinetics
upregulated ! twofold by saline osmotic stress: YJR096w‚ YBR149w‚ YOR120w‚ YHR104w‚ YDR368w‚ YNL274c‚ YGL157w‚ and YOL151w (Causton et al.‚ 2001). HIGHER HOMOLOGS In addition to ethyl acetoacetates‚ we also examined the interaction of higher b‐keto ester homologs with the collection of yeast dehydrogenases (Kaluzna et al.‚ 2004‚ 2005; Stowe and Stewart‚ 2005)
Premium Alcohol dehydrogenase Enzyme Yeast
Lab 5: Preparation of Synthetic Banana Oil September 20th‚ 2012 Purpose: The main purpose of this experiment was to synthesize banana oil (isopentyl acetate.) Ester are often prepared by the Fischer esterification method‚ which involves heating a carboxylic acid with an alcohol in the presence of an acid catalyst. Theory: Synthesize isopentyl acetate by combining isopentyl alcohol with acetic acid and sulfuric acid and then heating the reaction mixture under reflux for an hour. The alcohol
Premium Acetic acid Distillation Ester
Using orange (Citrus sinensis) as an airfreshener Review of related literature: Octyl acetate Octyl acetate‚ or octyl ethanoate‚ is an ester that is formed from octanol (octyl alcohol) and acetic acid. It is mostly found in oranges and other citrus products. Octyl acetate can be synthesized by a condensation reaction: C8H17OH + CH3COOH → C10H20O2 + H2O Uses Because of its fruity odor‚ octyl acetate is used as the basis for artificial flavors and in perfumery. It is also as a solvent for
Premium Acetic acid Ester