Summary of Chapter 11 Material SN2 Reaction Substrate: NO SN2 ON A TERTIARY HALOALKANE!! order of reactivity is as follows: Methyl > 1 > 2 Sterically less hindered substrates have faster rates in SN2 Nucleophile: If the reacting atom is the same in a series‚ nucleophilicity parallels basicity (i.e. -OH > -OCH3 > -OCH2CH3 > H2O) For the halogens in GAS PHASE: F- > Cl- > Br- > IFor the halogens in SOLUTION: I- > Br- > Cl- > F- (due to solvation of nucleophile‚ rendering it inactive) Negatively
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Lab 7: SN1 and SN2 Reactions Discussion/Conclusion: In this experiment the purpose of the lab was to study the relationship of structure and reactivity in nucleophilic substitution reactions by using qualitative tests of reactivity. Before the experiment began‚ students were asked to predict whether the reagents would cause an SN1 mechanism‚ SN2 mechanism‚ or both. When predicting the outcome of SN1 and SN2 reactions‚ the nature of the carbon skeleton‚ nature of the solvent‚ and the nature of
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Experiment 15 & 16: Preparation of 1-bromobutane‚ an SN2 reaction Preparation of 2-chloro-2-methylbutane‚ an SN1 reaction Introduction The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing‚ simple distillation‚ separation‚ and drying. To begin‚ in order for the compounds to react they will be dissolved
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Unit 2 assignment E1 + E2 Communication and language is essential to communicate‚ whether it be speaking‚ reading‚ or signing to others. From the age of birth babies will use “sound‚ gestures and symbols” (P.Tassoni‚ 2007 pg 44) to communicate to express their needs. For example a baby at the age of 6 weeks will express “cooling‚ making cooling sounds to show pleasure” (P.Tassoni‚ 2007 pg 44) But at the age of 18- 24 months babies will begin to put together two or more words to create a mini
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Unit 3 – Supporting Children (E1+E2) There are several laws that influence working practices in a setting for children that are currently in place. The Data Protection Act 1998 contains 8 principles to keep personal data safe. The principles state that data must be; obtained and processed fairly and lawfully‚ used only for specified and lawful purposes‚ adequate‚ relevant‚ not excessive‚ accurate‚ kept up to date‚ processed in accordance with the individuals rights and is kept secure (www.legislation
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SN1 Reactions For SN1 reactions it’s important to have a good leaving group because this reaction occurs in two steps. Because alcohol is such a poor leaving group it needs to be helped by silver nitrate to help promote the ionization of the alkyl halide. This helps form the products of the SN1 reaction. 2-chlorobutane This reaction didn’t occur because the carbocation isn’t stable enough for an SN1 reaction. 2-bromobutane This reaction occurred in 32 seconds. This reaction occurred quickly
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the professional skills and study skills will support me during my training and work; how I need to develop and maintain appropriate relationships with parents and other professionals as well as understanding the limits and boundaries of my role. E1 & E2 A statutorily provision for children’s care and education in Chatteris is Cromwell Community College. The Community College
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Experiment 3: SN1 – Report Sheet Last Name: Abbassi-Mohadjel | First Name: Nora | Date: OCT. 26‚ 2012 | Section Number: 005 (Friday->1:35-5:35pm) | Objective: 1 mark (What is the purpose of this experiment?) In this lab‚ spectrochemical technique was used to determine qualitively the product of a reaction. The purpose was to learn what a SN1 reaction was with combining 2‚5-dimethyl-2‚5-hexanediol and HCl and to learn how to use an infrared spectrum for analyzing the reaction
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Studying SN1 and SN2 Reactions: Nucleophilic Substitution at Saturated Carbon Date of Experiment: February 6‚ 2008 Objective: The objective of this laboratory experiment is to study both SN1 and SN2 reactions. The first part of the lab focuses on synthesizing 1-bromobutane from 1-butanol by using an SN2 mechanism. The obtained product will then be analyzed using infrared spectroscopy and refractive index. The second part of the lab concentrates on how different factors influence the rate of SN1 reactions
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Reminder: These notes are meant to supplement‚ not replace the laboratory manual. SN1 Reaction Notes Background and Application Substitution Nucleophilic First Order (SN1) reactions are one of the most common type of organic reactions. SN1 reactions can be used to make a wide variety of new compounds. In this experiment‚ t-amyl alcohol will be converted by a SN1 mechanism to 2-chloro-2-methylbutane. Safety Precautions Concentrated Hydrochloric Acid is 12M. It will cause visible destruction
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