Laboratory Experiment pubs.acs.org/jchemeduc NMR Kinetics of the SN2 Reaction between BuBr and I−: An Introductory Organic Chemistry Laboratory Exercise T. Andrew Mobley* Department of Chemistry‚ Grinnell College‚ Grinnell‚ Iowa 50112‚ United States S Supporting Information * ABSTRACT: A simple organic chemistry experiment is described that investigates the kinetics of the reaction between 1-bromobutane (BuBr) and iodide (I−) as followed by observing the disappearance of BuBr and the appearance
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ether. To isolate the alcohol‚ dilute acid was used to convert the magnesium salt to free alcohol and the mixture was washed with water and sodium chloride to remove remaining magnesium salt and water. Anhydrous sodium sulfate was used to dry the organic layer and all solvent was removed through rotary evaporation. To purify the product‚ the crude product was washed with hexane and recrystallized from hot 2-propanol. 1) 2) 3) Figure 4. Reaction mechanism for the preparation of Grignard reagent
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References: Grossie‚ D. & Underwood K. (2011).Laboratory Guide for Chemistry. “Atomic Spectrometry”‚ Wright State University. Dayton‚ OH.
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Chemistry 2283g Experiment 1 – Alkyl Halides EXPERIMENT 1: Preparation and Reactivity of Alkyl Halides Relevant Sections in the text (Wade‚ 7 ed.) • 6.7 (p. 228) Reactions of alkyl halides • 6.8 – 6.12 (p. 229 – 242) The SN2 reaction: generality‚ factors affecting SN2 reactions‚ substrate reactivity‚ mechanism • 6.13 – 6.14 (p. 243 – 249) The SN1 reaction: mechanism‚ stereochemistry General Concepts The most common of the variety of methods available for preparing alkyl halides is the replacement
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kidneys‚ that will filter blood and produces urine through three stages: ultrafiltration‚ reabsorption and secretion. The end product of the process will produce urine‚ which contains mainly water and a range of substances that such as inorganic salts‚ organic compounds and some metabolites. The quantity and composition of the urine reflects various biochemical processes that occur in the body. Thus‚ the composition of the urine of an individual may change when a person is unhealthy or has a disease. In
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Lab Report Quiz!!! | | | LabRepQuiz010 Question MC #19: All are true of the Materials and Methods section except___.Answer | | | | | | | | | | * Question 2 1 out of 1 points | | | LabRepQuiz010 Question MC #7: Which of the following is the best written sentence that includes the information below taken from an article written by Dr. Costanza‚ but avoids plagiarism? -A decade of research from Sunshine Health Clinic has shown that 20 minutes of exercise a day can
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CHM151LL Laboratory Report Form Fall 2011 Title: Project 5: SPECTROPHOTOMETRIC ANALYSIS OF A PENNY Date Run: 04/03/2012 Date Submitted: 04/15/2012 Grade: _____________________ Objectives: The purpose of this experiment is to use spectrophotometry to determine the percentage of copper in a copper-clad penny‚ and to determine the thickness of copper layer on the copper-clad penny. Introduction: In the spectrophotometric analysis of a penny lab‚ we will be conducting three
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Grignard Synthesis of Tirphenylmethanol David Szuminsky Organic Chemistry Lab II Shaopeng Zhang Monday 1PM 2/10/14 & 2/24/14 - Abstract A sample of triphenylmethanol was prepared using Grignard synthesis techniques. Reflux was used in order to speed up the reaction and the final product was purified using recrystallization methods. The percent recovery and percent yield were 80.46% and 47.526%‚ respectively. A melting point range of 85-87oC was obtained from
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Laszlo Vass‚ Ed.D. Version 42-0027-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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encoded by EZH2‚ the EZH2 gene encodes part of the Polycomb group which make protein complexes that help to maintain genes transcriptional repressive state over successive cell generations. http://www.ncbi.nlm.nih.gov/gene/2146 Throughout this lab report template DNA that contains the gene EZH2 was provided‚ this will be amplified by a PCR and cloned into a vector. This Polycomb group proteins help maintain the cell identity during progress through chromatin
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