Experiment 3: Wittig Reaction Introduction This experiment performs a modified Wittig reaction using a phosphorus-containing Hornes-Emmons-Wittig reagent to generate an enolate anion of trimethyl phosphonoacetate instead of a phosphorus ylide. The methyl trans-4-methoxy cinnamate produced is then analyzed using melting point and 1H NMR spectroscopy. Theory The Wittig reaction prepares alkenes from carbonyl compounds by attacking a phosphorus ylide with a nucleophilic carbon atom stabilized by
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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Reaction Paper: 2 The Stranger In Albert Camus’s The Stranger‚ he shares with the reader‚ the life of an immensely complicated character. The story is presented to the reader by the character himself in most of the story. The character’s name is Meursault‚ a detached and semi-normal shipping clerk. Meursault appears to be rather stoic and is devoid of emotions. Meursault remains unaffected by passion and emotions throughout the story: however as the story progress towards the end Meursault is showing
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Reaction Paper On The Ice is an engrossing and suspenseful movie about two teenage boys. The boys grew up together in the town of Barrow‚ Alaska. One morning the boys (Qalli and Aivaaq) set out for a seal hunt with a friend (James). An argument took place that ended up in a tragic accident. The boys (Qalli and Aivaaq) promised to keep this a secret. The community began asking questions‚ which brought them telling one fabrication after another which lead to feeling more guilt. Qalli had more
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Reaction Paper in BTC4 As students we go to school to learn‚ and that is why we attend our classes every day to learn so that our knowledge will increase‚ but as college students we are also obligated to attend seminars. Attending seminars is also important to shape the students to become more knowledgeable and professional and now we for the first time I attended a seminar which I know I can learn new things and discover more facts about life. For me attending in the seminars means added knowledge
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Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur‚ the equation for this reaction is: Na2 S2 O3 + HCL‚ H2 O + NaCL + SO2 + S Sodium Thiosulphate + Hydrochloric
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Baler A Reaction Paper for Spanish We spent two hours inside classroom. I saw a lot‚ discovered new ideas‚ thought of filling my senses‚ felt all the lines in the movie. But when I was about to go out‚ there seems to be something lacking. It’s like something is not reaching my stomach. It was like dissolved in my throat too early. The movie is acceptable. Full of good intentions. Intentions to deliver good performances‚ to tell a good story‚ to educate and entertain‚ to transport the viewer
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Lyceum of the Philippines University (Cavite Campus) Reaction Paper Slumdog Millionaire National Service Training Program (NSTP02G) Passed by: Bedua‚ Camille F. Passed to: Mr. Stanley Ybañez In the world where we stand today‚ money is such an accommodating material that almost everyone would do everything to gain this. The movie of Slumdog Millionaire by Danny Boyle is all about the struggle of brothers Jamal and Salim towards living. Along with their friend and Jamal’s lost love
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Reaction To Beloved The movie Beloved was a tale of a woman who is so devastated by the evil of slavery. Therefore she is willing to kill her toddler daughter rather than allow her to be taken back into the horror. This murderous act proves itself to be a choice‚ which only further enslaves her soul as her daughter’s ghost haunts her life. The movie was set in the 1800’s. Sethe is a pregnant slave on a Kentucky plantation named Sweet Home. She was under control by a violent slave master. To
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INDIGENOUS PEOPLE REACTION PAPER WOW! After the symposium‚ I realized how lucky I am to be in a concrete house‚ not worrying if the strong wind will take it with all its might; to live in a more comfortable house with comfortable clothes on. Indigenous people’s always stressing the hell out of them searching for food everyday‚ they can’t even apply for a stable job here in the city or at least away from secluded areas where they live. On the other hand‚ I salute them for they’re always active
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