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History Of Aspirin

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The synthesis of aspirin is very important in today’s society. One of the age old methods of treating patients with inflammation problems, blood coagulation problems, fevers, and having a high risk of heart problems involves the patient ingesting an oral supplement of aspirin. Using aspirin as a therapy can decrease the risk of a second heart attack (Baigent 2009). In fact, the FDA has approved four drugs for the prevention of vascular problems, and aspirin is one (Furie 2010). In addition, aspirin is used daily by many seniors in the U.S. In a recent survey, it was found that in people ranging from 45 to 75 years of age, 52% percent reported that they were currently taking aspirin, and 20% reported that they had used aspirin in the past (Thompson, …show more content…

In an esterification reaction, a carboxylic acid reacts with an alcohol. The synthesis of aspirin is an esterification reaction. Initially, the proton, i.e. the hydrogen ion, from the acid attacks the acetic anhydride and attaches itself on a double bond oxygen. This makes the compound more electrophilic, meaning that it has a higher affinity for electrons. This is what sets off the reaction. The salicylic acid then acts as an alcohol and attaches its OH group onto a carbon on the acetic anhydride. Then, the hydrogen from the OH group (the alcohol group) of the salicylic acid falls off, forming a tetrahedral intermediate, and the hydrogen ion reassociates with the conjugate base of the acid used as the catalyst. Next, the hydrogen that came from the acid initially, transfers its electrons and forms a double between the adjacent oxygen and carbon. However, the hydrogen atom does not fall off after the transfer of electrons but is kept there with a positive charge. With this, another transfer of electrons occurs and an acetyl group is generated from the breaking of the acetic anhydride. Now, the acetyl group breaks off the positive hydrogen attached and acetic acid is generated as a result. With this, the ester, the aspirin, is created (Watson

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