precursors 1. Abiotic synthesis of simple organic molecules (monomers) a. PROBLEM: Early scientists assumed that organic molecules are formed only by organic life b. SOLUTION: inorganic chemistry found to create organic compounds 1. Miller/ Urey experiments 2. Hydrothermal vents 3. Extraterrestrial origins? 2. Monomers to polymers a. PROBLEM: Complex polymers are generally created via organic enzymatic processes b. SOLUTION: Clay minerals
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The Synthesis of Alkenes: The Dehydration of Cyclohexanol Adam Ohnmacht CHEM 0330 Scott Caplan 10/30/12 Abstract: In Organic Chemistry‚ many different methods are used to synthesize organic compounds from various components. In this lab‚ cyclohexanol was dehydrated to cyclohexene through an elimination reaction. In order to separate the cyclohexene product from the cyclohexanol starting component‚ previously learned lab techniques such as extractions and simple distillation were used.
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Tetraphenylcyclopentadienone Joshua Krank Principles of Organic Chemistry Laboratory‚ Department of Chemistry and Biochemistry North Dakota State University‚ Fargo‚ ND 58102 Introduction: The purpose of this experiment was to synthesize tetraphenylcyclopentadienone using a reaction of dibenzyl ketone (1‚3-diphenyl-2-propanone) with benzil in the presence of base. The reaction then proceeded with an aldol condensation reaction.5 This product was obtained using extraction (reflux)‚ recrystallization
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Robinson Annulation Robinson Annulation is an useful organic reaction. This reaction is named after a British chemist Sir Robert Robinson. The term ’annulation ’stands for ’building a ring ’. In this reaction‚ the formation of α‚ β-unsaturated cyclic ketones from methl vinyl ketones and aldehyde or ketones takes place. Actually this reaction is a combination of two reactions. One is ’Michael Addition ’ and the other is ’Aldol Condensation ’. Robinson Annulation Mechanism In the first step
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to Tubingen again before taking up the post as director of the organic chemistry department at Heidelberg (1). Wittig became an emeritus professor in 1967‚ where he remained until the end of his notable career (1). In 1967‚ he won the Otto Hahn Prize‚ and in 1979‚ he and Herbert C. Brown were jointly awarded the Nobel Prize for their development of the use of boron and phosphorus-containing compounds for important reagents in organic synthesis (1). The foundation of the Wittig reaction is not complex
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References: Attkins‚ R. C.‚ & Carey‚ F. A. Organic Chemistry: A Brief Course; Mc Grawhill Inc.: New York‚ USA‚ 1990; p 205. Bloch‚ D. R. Organic Chemistry Demystified: 2nd Ed; Mc Grawhill Inc.: New York‚ USA‚ 2012; p 395. Langley‚ R. H.‚ & Moore‚ J. T. Organic Chemistry II for Dummies; Wiley Publishing Inc.: Canada‚ 2010; p 139. Mayo‚ D. W.‚ Pike‚ R. M.‚ & Forbes‚ D. C. Microscale Organic Laboratory with Multistep & Multiscale Synthesis: 5th Ed; John Wiley & Sons
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In the reaction mechanism‚ a carboxylic acid‚ m-toluic acid is used to synthesize N‚N-diethyl-m-toluamide‚ also know as DEET‚ through a nucleophilic acyl substitution reaction. The reaction begins by first converting the m-toluic carboxylic acid into an acyl chlorosulfite through a reaction using thionyl chloride. The carboxylic acid is converted into an acyl chloride because the acyl chloride is more reactive. In this step‚ hydrochloric acid is formed from a hydrogen on the carboxylic acid and a
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APPLICATIONS OF ORGANIC COMPOUNDS IN LASER TECHNOLOGY WHAT IS AN ORGANIC COMPOUND? An organic compound is any member of a large class of gaseous‚ liquid‚ or solid chemical compounds whose molecules contain carbon. Organic chemistry is the science concerned with all aspects of organic compounds. Organic synthesis is the methodology of their preparation. APPLICATIONS OF ORGANIC COMPOUNDS clothing of cotton‚ wool‚ silk‚ and synthetic fibres; common fuels‚ such as wood‚ coal‚ petroleum‚ and natural
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consider my application for a probationary status in the Department of Chemistry‚ School of Natural Sciences. I recently earned my Masters degree in Education major in Science Education in this institution last June 25‚ 2015 with a general weighted average equivalent to that of a Cum Laude. In my thesis‚ I collaborated with an IT specialist from SITEL Baguio to produce a software that could be used by students enrolled in Organic Chemistry. Now‚ I am on the process of submitting my thesis for paper presentation
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Synthesis of Salicylic Acid from Wintergreen Oil Objective – Preparation of salicylic acid (organic synthesis) from methyl salicylate utilizing previously used procedure from the nineteenth century. The final product will then be evaluated in comparison to salicylic acid made from benzene. Discussion – In this synthesis‚ methyl salicylate is the starting material or precursor and salicylic acid is the target product. It is the major constituent of wintergreen oil. The difference in structures
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