Diels-Alder Reaction: Synthesis of cis-Norbornene-5‚ 6-endo-dicarboxylic anhydride Introduction: The Diels-Alder reaction is a [4+2] cycloaddition of a conjugated diene and a dienophile. This type of reaction was named for Otto Diels and Kurt Alder who were the first to investigate this reaction (Weldegirma‚ 2012). The Diels- Alder reaction is one of the most important reactions in all of organic chemistry because of the applicability of it. This reaction can form new
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Synthesis of Banana Flavor CHEMISTRY 200L EXPT 02 PAGE 01 - 11 Gerome B. Vallejos*‚ Ellis Mika C. Trino‚ Jahn Camille B. Valdez‚ Ariza Yamashita Department of Biological Sciences‚ College of Science Group 11 Corresponding author: gerome_911@yahoo.com Abstract The purpose of this experiment was to synthesize isopentyl acetate via Fischer esterification reaction between acetic anhydride and isoamyl alcohol‚ using concentrated sulfuric acid as a catalyst. This reaction is characterized by the combining
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Objective: The benefit of this lab was to acquaint oneself with the fundamentals of the Aldol Condensation reaction by demonstrating the synthesis of dibenzalacetone (trans‚ trans-1‚5-Diphenyl-1‚4-pentadien-3-one) through the aldol condensation of acetone with benzaldehyde. The synthesis began by using a strong base to generate the acetone enolate ion. The ketone/enol tautomerization is an equilibrium process that produces little of the enol (ppm or less). However‚ any enol that formed quickly reacted
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DNA synthesis inhibitors Nucleic acid inhibitors are chemicals which inhibit the production of nucleic acids including both DNA and RNA. DNA and RNA inhibitors inhibit enzyme action in DNA replication in the same way as the topoisomerase inhibitors we discussed earlier. Topoisomerase inhibitors (1) (10) are chemicals which interfere with the enzymes that allow DNA strands to separate and to re-join‚ a process that is required for the division of bacteria and without which DNA cannot effectively
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SYNTHESIS AND CHARACTERIZATION OF HIGHLY CROSSLINKED HYALURONAN HYDROGELS Newell R. Washburn1‚ Sidi A. Bencherif1‚ Abiraman Srinivasan2‚ Jeffrey O. Hollinger2‚ Ferenc Horkay3‚ Krzysztof Matyjaszewski1 Departments of 1Chemistry and 2Biomedical Engineering Carnegie Mellon University‚ Pittsburgh‚ PA 15213 3 Laboratory of Integrative and Medical Biophysics National Institutes of Health‚ NICHD 13 South Drive‚ Bethesda‚ MD 20892 Introduction Methacrylation of hyaluronic acid (HA) with glycidyl methacrylate
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Social Studies Julie Shapiro “Crito” Reaction 10/14/12 The great Athenian philosopher Socrates believed in justice and overall fairness regarding the law. If a crime were committed‚ Socrates would rather take the punishment instead of seeking revenge. His morals consisted of accepting the scandal he had executed and not take vengeance. This differs from Hammurabi’s eye for an eye method. Hammurabi followed a path of abase payback and doing onto others what had been done to you. Socrates
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Abdulfatah Momen R/W class One of the basic components of the community is children. Some of families think that having children bring problems to their life. Some of these families decide to work off children by medical science before children come to the life. The way that they choosing is abortion. Abortion was made by women who are pregnant‚ and they don’t want to have children. Abortion is the termination of a pregnancy by the removal of the fetus. Rates of abortion increase to be very
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Megan Garber Professor Keltner Composition 1 3 November 2013 The Ways Media Portrays Women Throughout today’s society‚ media contributes to almost everyone’s daily life. From informative news channels to comical television shows‚ media proves to be effective in advertisement‚ releasing messages and informing the audience. Although media proves to be wildly effective in advertising‚ releasing messages and informing the audience‚ periodically destructive and misleading messages are provided
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The people of America live in a country whose citizens are gifted with the system of Democracy where each person has their voice represented in decisions of the nation. The inherent responsibility of each voting age citizen of America is to research the positions and views of all candidates that represent them and then punch‚ mark‚ or press the space next to the candidate that they believe would best represent him or her. But not all Americans would care to look closely at the opinions of the election
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ST. Peter’s Academy Polangui‚ Albay ORSEM 2014 Submitted By: Krisell Agaton Submitted to: Mr. Gilbert Baynado What I Did/What I Learn/ What I Want To Learn This seminar‚ we the 4th year join forces to make this event memorable and successful with our little effort in doing tasks that were assigned. I was in charge on the preparation of the program that was given to our guest speakers and groupmates. I also help in decoration
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