The Wittig reaction is a unique reaction that can be carried out in various ways as our prompt exemplifies. We will be primary focusing on the second of the three schemes. In The usual formation of an ylide occurs via Sn2 attack of a PR3 group on an alkyl halide‚ which is then followed by a strong base deprotonating of one of the hydrogens on the methyl which the PR3 attacked. Before we dive into the details of the reaction occurring in scheme 2 it will be important to understand the mechanism which
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Trapal‚ Mariel B. Prof. T.D. Macasil BSE Physical Science Reactions of amines Reaction of amines with acids – acids and amines form ammonium salts. R – NH2 + HCl → R – NH3+ + OH – Amine acid amine salt Example 1 CH3 – NH2 + HCl → CH3 – NH3 + Cl- Methylamine Methylammonium Example 2 CH3CH2 – NH3 + Cl → CH3CH2NH2 . HCl Ethylammonium Ethylamine Reaction of amine with water – when amines react with water‚ they produce hydroxide ( OH
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of an object is determined using a process called titration. According to Petrucci et al.‚ titration is a reaction carried out by the carefully controlled addition of one solution to another. It has several types like acid-base titrations and redox titrations. This experiment focuses on the latter type‚ the redox titration. A redox titration is based on an oxidation-reduction reaction between analyte and titrant (Harris‚2009). It involves the transfer of electrons between the two solutions. This
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1 Media Reaction: Immigration Proposal Kellee-Ann Simeus SOC/215 4-9-12 Colleen Hall-Patton 2 Media Reaction: Immigration Proposal * Illegal immigration has been a problem in the United States since the late nineteenth century. A federal law was passed barring entry to all convicts and prostitutes. Before then‚ immigration was scarcely controlled. Over centuries different laws were passed in attempt to get the situation under control. Once the Immigration Law passed‚ legal immigration
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Lemuel Medoranda BSBA II-3 MY REACTION PAPER TO NOLI ME TANGERE The title of this novel "Noli Me Tangere" is a Latin words meaning in tagalong “Huwag Mo Akong Salingin”. Jose Rizal‚ our national hero is the writer of this novel‚ where in‚ this novel was written during his time‚ where in‚ the exact year was 1884‚ he was in Madrid taking up medicine when he write this novel. When he finished his course (Medicine)‚ he went to Paris and continues writing this novel. In Berlin‚ Jose Rizal finished
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26‚ 2010 Experiment No. 2 – Coupled Reactions R.S. Velasco Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman Quezon City‚ Philippines Received Dec. 1‚ 2010 ------------------------------------------------- ------------------------------------------------- ABSTRACT The reaction of carbon dioxide gas to form carbon monoxide and oxygen gas is non-spontaneous (∆G > 0)‚ thus we coupled it with the reaction that has a free energy that is negative
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Aldol In this preparative lab‚ an aldol (trans-p-anisalacetophenone) was produced from the reaction between p-anisaldehyde and acetophenone with the presence sodium hydroxide. The reaction also showed the importance of an enolate and the role it played in the mechanism. Sodium hydroxide acts as a catalyst in this experiment and is chosen because of its basic conditions and pH. The acetophenone carries an alpha hydrogen that has a pKa between 18 and 20. This alpha hydrogen is acidic because of its
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The Displacement Reactions Purpose: to see how displacement reaction works with different chemicals and what chemical has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it
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3/28/2014 5.1 Collection and Analysis of Rate Data Differential and integral method for batch data 5.2 Method of initial rates 5.3 Method of half lives Chapter 5 Determine the reaction order and specific reaction rate from experimental data obtained from batch reactors. Describe how to use numerical difference formulas to analyze experimental data to determine the rate law. 5.1 Differential and integral method for batch data Describe how the methods
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E XPE RIME NT 4 . 5 Reactions of acids Aim To investigate and compare some reactions of a strong acid‚ hydrochloric acid‚ and a weak acid‚ ethanoic acid (common name‚ acetic acid) Equipment Dropper bottles containing: • 0.1 M hydrochloric acid‚ HCl • 0.1 M ethanoic acid (acetic acid)‚ CH3COOH • 0.1 M sodium hydroxide‚ NaOH • 1 M hydrochloric acid‚ HCl • 1 M ethanoic acid (acetic acid)‚ CH3COOH • universal indicator solution • limewater (calcium hydroxide‚ Ca(OH)2) Marble chips (calcium carbonate
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