alkoxide react with a primary haloalkane or a sulfonate ester under typical SN2 conditions. The scientist who developed this reaction‚ Alexander W. Williamson‚ was a professor at University College in London in the latter part of the 1800’s. This reaction has been around a while! Secondary haloalkanes and sulfonate esters are occasionally used in the Williamson ether synthesis but the yields are often poor. The ether prepared in this experiment is methylphenoxyacetic acid‚ a phenolic ether that is prepared
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William son Eth er Synth esis Introduction In this reaction‚ an alcohol is deprotonated to form a good nucleophile‚ which then attacks the electrophile methyl iodide to form an ether. Tetrabutylammonium bromide‚ a phase transfer catalyst‚ is used to carry ions back and forth between the organic phase and the aqueous phase. OH O NaOH + NaI + H2O CH3I Before coming to lab‚ please review the following techniques: "Reluxing a reaction‚" "Extraction and washing‚" "Drying an Organic Solvent‚" "Evaporating
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Cyclops Paper The Klan was very influential in Williamson County‚ in November 1922 seventeen men walked in the First Christian Church on Sunday morning in full Klan regalia‚ hoods up and everything. But what they didn’t know was this wasn’t going to be the last time these men would wreak havoc on their day to day lives. The Klan had a severe prejudice for immigrants and took up residence in small towns in southern Illinois. Williamson County was the perfect place for them. They led residents
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Department of | |Justice |Donaldson‚ Donald. (1990). "Rape of Males‚" in Dynes‚ Wayne‚ ed. Encyclopedia of Homosexuality.New York: Garland Publications. | |Groth‚ A |Harry‚ Joseph. (1992). "Conceptualizing Anti-Gay Violence‚" in Herek‚ Gregory and Kevin Berrill‚ eds. Hate Crimes: Confronting | |Violence Against Lesbians and Gay Men.Newbury Park‚ CA: Sage Publications |Human Rights Watch‚ 2001. | |Isley‚ Paul |McMullen‚ Richie J. (1990). Male Rape: Breaking the Silence on the Last Taboo. London: GMP Publishers
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Procedure The procedure stated in Chem 2120 experiment 6 Williamson Ether Synthesis of Phenacetin laboratory manual was followed without any major changes. Data and results Compound Amount used MW (g/mol) Moles Stoichiometry/Comments acetaminophen 0.354 g 151.16 2.34 x 10-3 limiting reagent ethyl iodide 0.3mL 155.97 3.75 x 10-3 1.6 equiv ’s sodium ethoxide 2.6mL 68.05 3.3 x 10-2 catalyst‚ reaction solvent crude product obtained: phenacetin 0.32g
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Case Study 1: Prioritizing Projects at D.D. Williamson Dr. Donny Bagwell Managing Human Resources Projects: HRM 517 October 27‚ 2013 Introduction D.D. Williamson implemented a new process for project prioritization that included focusing on the vision and impact of projects and narrowing down projects by selecting the ones of high importance and assigning them to senior management teams. I will attempt to critique that process‚ recommend an improvement for
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Introduction Case Analysis D. D. Williamson created a list of 78 projects which needed to be prioritized‚ organized‚ and selected. The company used a four step method to rate each project: 1) Establish criteria for prioritizing projects. 2) Weigh each criterion. 3) Refine the list of projects. 4) Rate each project on each criterion and total ratings. To give team members control over the ranking of projects‚ each member was asked to write three different criteria on three Post-it Notes.
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A male (♂) organism is the physiological sex which produces sperm. Each spermatozoon can fuse with a larger female gamete‚ or ovum‚ in the process of fertilization. A male cannot reproduce sexually without access to at least one ovum from a female‚ but some organisms can reproduce both sexually and asexually. Most male mammals‚ including male humans‚ have a Y chromosome‚ which codes for the production of larger amounts of testosterone to develop male reproductive organs. Not all species share a
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Jacob presents as a 7 year-old boy‚ diagnosed with Asperger’s Syndrome (AS) and Sensory Integration Disorder. He has a very high IQ‚ enjoys music‚ art and watching movies and/or TV shows which he would imitate precisely from beginning to end. His mother is concerned because the school psychologist seems to be at wits end trying to provide behavioral intervention strategies to use with Jacob. She has sought my help in aiding the school psychologist as well as meeting with Jacob for outpatient therapy
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Brilliant Lies by David Williamson shows that sexual harassment is a twisted combination of sex and power. Susy Conner uses sex to gain power‚ Gary Fitzgerald uses power to gain sex and Brian Conner was too drunk to realise his abuse of both power and sexual harassment. All of these characters wanted something and they all thought they knew how to get it by using either sex or power‚ or a little of each. Susy has always relied on her looks and sex appeal to get her by and to gain power. She used
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