Producing Isoamyl Acetate from Isoamyl Alcohol and Acetic Anhydride through Esterification
Producing Isoamyl Acetate from Isoamyl Alcohol and Acetic Anhydride through Esterification
Racquel Erica D.G. Isada, Jannah B. Juan*, Moses Isaiah L. Koh and Hedder A. Lim
Department of Biology, College of Science
University of Santo Tomas, España Street, Manila 1051
Date Submitted: August 13, 2014
Abstract:
In this experiment, the synthesis of Isoamyl acetate from Isoamyl alcohol and Acetic anhydride was prepared with the process of Esterification. By using the reflux technique, extraction, washing and drying the Isoamyl acetate or banana flavor was isolated from the acetic acid. This was then weighed and computed for the percent yield. The theoretical yield and the weighed value must have close values in order for this experiment to be successful.
Keywords: fruit flavors, banana flavor, acyl esterification, reflux, extraction, washing, drying, drying agents
Introduction
Esters are a group of organic compounds that give out distinct odors. Examples of esters are fruit flavors such as the product of this experiment. Isoamyl acetate or banana flavor is an ester which resulted from an acyl esterification between Isoamyl alcohol and Acetic anhydride. Acyl esterification is a reaction between acid anhydrides and acyl chlorides. Through this experiment, the students that performed it would have learned about reflux, extraction, washing and drying. The reflux technique is the boiling of the reagents while cooling the vapor escaping from it and having it returned in the flask to prevent evaporation. This guarantees that the temperature in the flask is constant. Extraction, washing and drying the resulting chemicals after the reflux technique separates the desired product, in this experiment it was the Isoamyl acetate, from the excess products. Drying agents are used twice in this experiment, first to remove the water where the undesired products was washed into and the last to remove the excess.
The objectives of this experiment is as follows:
To synthesize
Racquel Erica D.G. Isada, Jannah B. Juan*, Moses Isaiah L. Koh and Hedder A. Lim
Department of Biology, College of Science
University of Santo Tomas, España Street, Manila 1051
Date Submitted: August 13, 2014
Abstract:
In this experiment, the synthesis of Isoamyl acetate from Isoamyl alcohol and Acetic anhydride was prepared with the process of Esterification. By using the reflux technique, extraction, washing and drying the Isoamyl acetate or banana flavor was isolated from the acetic acid. This was then weighed and computed for the percent yield. The theoretical yield and the weighed value must have close values in order for this experiment to be successful.
Keywords: fruit flavors, banana flavor, acyl esterification, reflux, extraction, washing, drying, drying agents
Introduction
Esters are a group of organic compounds that give out distinct odors. Examples of esters are fruit flavors such as the product of this experiment. Isoamyl acetate or banana flavor is an ester which resulted from an acyl esterification between Isoamyl alcohol and Acetic anhydride. Acyl esterification is a reaction between acid anhydrides and acyl chlorides. Through this experiment, the students that performed it would have learned about reflux, extraction, washing and drying. The reflux technique is the boiling of the reagents while cooling the vapor escaping from it and having it returned in the flask to prevent evaporation. This guarantees that the temperature in the flask is constant. Extraction, washing and drying the resulting chemicals after the reflux technique separates the desired product, in this experiment it was the Isoamyl acetate, from the excess products. Drying agents are used twice in this experiment, first to remove the water where the undesired products was washed into and the last to remove the excess.
The objectives of this experiment is as follows:
To synthesize
References: [2]Brown, W., and Poon, T. (2011). Introduction to Organic Chemistry (4th ed.). Asia: John Wiley & Sons. [1]Palleros, D. (2000). Experimental Organic Chemistry. USA: John Wiley & Sons. *(CORRESPONDING AUTHOR: JUAN)