Organic Chemistry II
This page is dedicated to the many different lab reports made in Organic Chemistry lab. They helped me to pay attention to detail and become better as the semester went on. Prior to taking this class, organic chemistry was my biggest enemy. With some of my hard work and amazing professor Dr. Kiren, I could understand the concepts of organic chemistry, and gain the knowledge I need to get to the next level.
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Course Goals:
1. Demonstrate an understanding of the common organic chemistry laboratory techniques and procedures.
2. Demonstrate mastery of the laboratory skills and safety in organic chemistry laboratory techniques and procedures.
3. The student will be able to apply analytical reasoning and critical-thinking in order to identify and solve organic chemistry problems.
4. Demonstrate the ability to effectively communicate technical findings through laboratory notebooks and written reports.
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Nitration of Methyl Benzoate Lab
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Purpose: The purpose of this experiment was to take methyl benzoate and synthesize it into methyl 3-nitrobenzoate. It went through a process known as a electrophilic aromatic substitution reaction. The reagents used to synthesize the starting material were the two acids, nitric acid and sulfuric acid.
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Conclusion: The main goal of this experiment was to add a nitro group to the methyl benzoate, creating methyl 3- nitrobenzoate. It was successfully done based on the IR, which showed the nitro group as a peak. Although my lab partner dropped the sample, and we had some impurities, the melting point was still near the melting point for the methyl 3- nitrobenzoate.
For more information see attached lab report.
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Grignard Synthesis of Triphenylmethanol Lab
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Purpose:
The purpose of this experiment was to take benzophenone and bromobenzene to synthesize triphenylmethanol. When magnesium is added to the bromobenzene in ether, a Grignard reagent is formed. Using this Grignard reagent, triphenylmethanol can be synthesized in a two-step reaction first adding the reagent and then adding an acid. This was all created through the Grignard reaction.
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Conclusion: The main goal of this experiment was to use benzophenone and bromobenzene to synthesize into triphenylmethanol. Based on the IR spectrum, melting point, and TLC, it was successfully done. Although there were some impurities, the product was created. The purpose was to create an alcohol and the product was formed. Although the product was found in the IR, there could have still been some salts within the compound so the melting point range was a tad broader and lower than the average for triphenylmethanol [of 162 degrees Celsius, but is still very close.
For more information see attached lab report.
Research Project on Synthesis- Fischer Esterification Lab
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Purpose: The main purpose of this lab was to create an ester along with water, while using an unknown carboxylic acid and an unknown alcohol. The other purpose of the lab was to also identify the unknown structures of the compound.
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Conclusion: The purpose of this experiment was to take an unknown alcohol and carboxylic acid and react them to create and ester, along with the by product, water. The unknown carboxylic acid, (C3) was 4-methyl benzoic acid. The unknown alcohol, (A4) was isopropanol. This process known as Fischer Esterification created isopropyl 4-methyl benzoate. According to the TLC and IR, this was successfully done. The percent yield was 33.3%. Although our percent yield was somewhat low, the IR showed that the compound was an ester.
References:
All photos from google images.
Lab Reports site Information
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