"Diels alder reaction of cyclopentadiene and maleic anhydride" Essays and Research Papers

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    Diels-Alder Synthesis of Exo-Norbornene-cis-5‚6-Dicarboxylic Anhydride for Organic Chemistry Laboratory Instruction Kyle Myers and Dr. James Roark University of Nebraska at Kearney‚ Department of Chemistry‚ Kearney‚ NE 68849 Abstract A technique for the Diels-Alder synthesis of endo-norbornene-cis-5‚6dicarboxylic anhydride and its stereoisomer‚ exo-norbornene-cis-5‚6-dicarboxylic anhydride‚ is explained. To prove that each stereoisomer was made in the experiment and to distinguish between the

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    Maleic anhydride underwent the Dials-Alder reaction with distilled cyclopentadiene as the dienophile. The reaction was a cycloaddition which produced cis-Norbornene-5‚6-endo-dicarboxylic Anhydride surface. (1) Product one had a mass of 9.351 grams and product two had a mass of 9.572 grams. The theoretical yield was found to be 10.047 grams‚ which makes the percent yield to be 93.07%. Melting Points were found to confirm the purity of the product. Product one had a melting point of 163.7-164

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    2013 “Reaction Classes and Pericyclic Reactions” ● 4 Lectures ● Recommended Texts: (i) J. March “Advanced Organic Chemistry”‚ p 839‚ `---Edn.‚ Oxford (W); Warren (2) Ch 34‚ 35. Syllabus 1) General principles (a) Reaction classes (i) Heterolytic (ii) Homolytic (iii) Pericyclic (b) Pericyclic Reaction Types 2) Electrocyclic Reactions (a) Definition and examples (b) Stereochemical aspects and the Woodward and Hoffmann rules 3) Cycloaddition Reactions (a) Definition

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    variety of chemicals and materials used in electronic components‚ printed circuit boards‚ consumer electronics and other industrial products. This report focuses on analyzing photoresist & its special chemicals and capacitor chemicals as well as maleic anhydride derivatives used in printed circuit boards‚ flat panel displays and semiconductors. 1 Photoresist Photoresist is mainly used for fine graphics processing in PCB‚ LCD‚ semiconductor and other areas. In 2013‚ the global photoresist market scale

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    Alder Quotes And Analysis

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    majority of your time is spent in the past or future‚ but rarely living in the realism of NOW.’ - Shannon L. Alder The quote listed above by Shannon Alder is very meaningful and thought provoking‚ relating to not just people who suffer from personality disorders‚ but to anyone that may occasionally be conflicted with stress‚ anxiety‚ or any other forms of suffering. Prioritizing the focal point‚ Alder acknowledges how the ‘true definition’ of a mental illness is over-contemplating our past or future when

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    Alfred Alder Feb. 7th‚1870 - May 28th‚ 1937 Alfred Alder is a psychologist whom was born in Vienna‚ Austria. As a child‚ Alfred suffered with Rickets. Rickets is a disease that is caused by a lack of vitamin D‚ calcium‚ or phosphate. Rickets leads to the softening and weakening of the bones. Because of Alder having this disease‚ he was restricted to a wheel chair until the age of four when he was able to walk on his own. Due to Alder having

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    Nor Amirah Farhana Nawawi Organic Chemistry Lab Report Bo Shen Title: Nucleophillic Substitution Reaction Introduction: This lab experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol

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    Reaction on Reaction Paper The first thing that came to my mind when I have heard about Reaction paper is “What exactly is it?” and before I get an understanding of that‚ I resisted that change. But later‚ when I have studied about it and understood its purpose‚ I have started thinking “Why people avoid change at the first look without an analysis?” The general human tendency is to live in a comfortable zone in which he has lived for quite some time. He draws a circle‚ thinks that circle is his

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    Chemical Reactions

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    Chemical Equation Chemical Reaction:  C10H8+ 12 O2 → CO2 + 4H2 O (Naphthalene) Combustion Introduction of the Product: Naphthalene is an organic compound with formula C10H8. It is the simplest polycyclic aromatic hydrocarbon‚ and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon‚ naphthalene’s structure consists of a fused pair of benzene rings. It is best known as the

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    Reactions

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    PUTTING IT TOGETHER: Classifying Chemical Reactions Purpose: To observe and differentiate between the four different types of chemical reactions. Variables: The independent variables are the sodium chloride‚ sodium carbonate‚ magnesium‚copper‚ copper (11) sulfate‚ silver nitrate‚ oxygen‚ lead(11) nitrate‚ sodium carbonate‚ copper (11) sulfate pentahydrate. The dependent variables are the chemical reactions that are being looked for. For example decomposition‚ synthesis‚ single displacement or double

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