Ester

Introduction Some esters are used as food flavourings, while other esters are used as fragrances. Esters are a functional group in organic chemistry. They are characterized by a carbon bound to three other atoms: a single bond to a carbon, a double bond to an oxygen, and a single bond to an oxygen (Clark, 2004). The single bond oxygen is bonded to another carbon. Esters can be produced through various synthetic routes. Since, esters are produced from mixing carboxylic acids and alcohols, they can synthesized artificially in labs. One possible way to synthesized esters is to react an alcohol and a carboxylic acid. The purpose of this lab was to observe the synthesis of esters and identify the odor of each ester synthesized. The procedure to…

Introduction The functional group, ester, is composed of an oxygen atom bonded to a carbon that is double-bonded to an oxygen. Esters occur naturally in flowers, fruits, and spices. Similarly, carboxylic esters are typically used in the formulation of artificial flavorings, as they have characteristic smells and tastes. Isopentyl acetate is a carboxylic ester associated with a banana scent. Ficher-Speier esterfication is the technique used in order to synthesize isopentyl acetate. This type of…

Esters are compounds that release vapors that are pleasant to smell such that similar to various fruits. They are using in a variety of things such as scented candles, air fresheners, incense and other sweet smelling products. The process for making air fresheners uses Fischer Esterification, the same procedure used to create our ester (Banana oil). Creating an artificial ester involves using various molecules containing alcohol groups (OH) and carboxylic acid groups (C=OOH), using different…

Introductions: The purpose of this experiment is to synthesize acetaminophen and esters in order to apply the process of retrosynthetic analysis to determine the unknown alcohols used to produce the esters. Acetaminophen, a popular active ingredient in many over-the-counter drugs, is used as a pain reliever and a fever reducer. It is synthesized from the reaction between a carboxylic acid and an amine; thus, acetaminophen contains hydroxyl and amide functional groups.1 C6H7NO + C4H6O3 C8H9NO2 +…

Identifying Unknown Esters Produced by Fischer Esterification Introduction This procedure was performed in order to prepare an ester using an unknown alcohol and unknown acid via Fischer Esterification. Then to identify this unknown ester using gas chromatography. Esters are a derivative of carboxylic acids. In the Fischer approach, an acid is used in order to allow the esterification to occur. Gas chromatography separates compounds by their elution time. Data and Results The compound in the…

Purpose: As derivatives of carboxylic acids, esters are abundant compounds that often contribute to the fragrances in flowers, fruits, and coffee. Esters are synthesized from either organic or inorganic acids through a process called esterification. In this reaction, a carboxylic acid (RCOOH) and an alcohol (R’OH) mix in the presence of a strong acid catalyst to form a neutral, water-insoluble ester (RCOO’R) that gives off a pleasant smell. The following is an example of this reaction: The…

The calculated percentage yield was 0.82%. Which although was low, could be accounted for the equilibrium reaction and the loss of product due to transfer and spilling. The smell of the produced butyl ethanoate ester was nail polish remover, which is clearly not the smell of pears which through research it was meant to smell like. This indicates that the esterification process was unsuccessful. Another indication that the esterification process was unsuccessful was that the product was pipped…

In the experiment, a Fischer Esterification reaction took place in order to convert a carboxylic acid into an ester. As a result of this reaction, the alcohol (-OH) of the original carboxylic acid, Benzoic Acid, will be replaced with the –OCH3 group attached to the original alcohol, methanol. This would then generate the ester, Methyl Benzoate. An ester is a derivative of a carboxylic acid that can be formed in multiple ways. The most straightforward approach to producing and ester involves the…

The objective of this experiment is to prepare isopentyl acetate by direct esterification of acetic acid and isopentyl alcohol. Esterification is carried out by utilizing organic chemistry techniques, such as heating under reflux, extraction, and simple distillation. The acid and alcohol would be combined and heated under reflux; which heats/speeds up the reaction without having the reactants/products evaporate or explode. During reflux, the heating and condensing of the vapor prevents any loss…

By considering the recorded Blood pressure data, among the synthesized derivatives, 9c has shown significant anti-hypertensive activity and prolonged duration of action when compared to the standard drug Propranolol but onset of action is slightly delayed than standard drug, which may be due to time required for ester hydrolysis. The reduction in Systolic Blood Pressure in case of 9c is more than that of the standard drug, Propranolol which suggests the probable synergistic effect of 2-phenyl…