"Alkynes alkene alkanes aromatic" Essays and Research Papers

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    Angostura Bitters

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    Angostura Aromatic Bitters’ marketing plan Table of Contents 1. Executive Summary 3 1.1 Synopsis of the Situation 3 1.2 Key aspects of the marketing plan 5 2. Environmental analysis 6 2.1 Strengths and weaknesses 8 2.2 Opportunities and threats 9 2.3 Current objectives and performance 11 2.4 Five forces’ Porter analysis 11 3. Marketing Strategy 13 3.1 Segmentation 13 3.2 Target Market 14 3.3 Positioning (Value Proposition) 15 4. Marketing Programs 16 4.1 Product 16 4.2 Pricing 17 4.3 Promotion

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    reaction is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel Prize winner in 1979 for the Wittig reaction (1). He was born in Berlin‚ on June 16‚ 1897‚ and died August 26‚ 1987 (1). Wittig discovered the route to alkenes through ylide molecules (1). Wittig was educated originally at Tubingen; Wittig spent periods at Braunschweig‚ Freigurg‚ back to Tubingen again before taking up the post as director of the organic chemistry department at Heidelberg (1). Wittig became

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    dissolve easily in water. However‚ when we introduce water to big greasy hydrocarbon chains (usually called alkanes‚ or fats and oils as we know them)‚ the water just slides right over them and our plate stays greasy. This is because fats‚ oils‚ and waxes are nonpolar substances. If instead of using water we used less polar mineral spirits (not recommended on food prep items)‚ those greasy alkanes would be dissolved in no time. Solubility concerns are clearly at the forefront of chemistry in the home

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    Michael Addition Reaction

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    The Michael addition is a reaction named after Arthur Michael. Discovered in 1887‚ this is a carbon-carbon bond making reaction. The result of the Michael addition is a 1‚4 addition of a nucleophile to an alpha‚ beta-unsaturated carbonyl carbon compound. A 1‚4 addition is also commonly referred to as a conjugated addition. Another result of this reaction is a 1‚2 addition of a nucleophile. Some of the common attacking nucleophiles used in this reaction are enolates. Enolates‚ a negatively charged

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    Perfume Fragrances

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    wheel.  Aromatics sources Plant sources Plants have long been used in perfumery as a source of essential oils and aroma compounds . These aromatics are usually secondary metabolites produced by plants as protection against herbivores‚ infections‚ as well as to attract pollinators. Plants are by far the largest source of fragrant compounds used in perfumery. The sources of these compounds may be derived from various parts of a plant. A plant can offer more than one source of aromatics‚ for instance

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    g/mol bp 60 °C mp 133-134 °C mp 93-95 °C mp 202-204 °C When an electrophile‚ such as bromine‚ adds to an alkene‚ the addition can be done in a syn fashion‚ in which the two groups add to the same side of the molecule‚ or in an anti fashion‚ in which the groups add to opposite sides of the molecule. Depending on the mode of addition‚ syn or anti‚ and the stereochemistry of the starting alkene‚ various stereoisomers will result. In some cases‚ a racemic mixture of products is formed‚ other times

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    be analyzed using gas chromatography. This experiment was performed to show how a radical hydrogenation reaction works with alkanes. Four isomers were attained and then relative reactivity rate was calculated. 1‚1-dichlorobutane had 2.5% per Hydrogen; 1‚2-dichlorobutane had 10%; 1‚3-dichlorobutane had 23%; and 1‚4-dichlorobutane had 9.34% per Hydrogen. Introduction Alkanes are relatively unreactive. There are only a few types of reactions commonly performed. In this lab‚ halogenation was performed

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    4335 2H Que 20090617

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    Surname Centre No. Initial(s) Paper Reference 4 3 3 5 Candidate No. 2 H Signature Paper Reference(s) 4335/2H Examiner’s use only London Examinations IGCSE Team Leader’s use only Chemistry Paper 2H Higher Tier Wednesday 17 June 2009 – Morning Time: 2 hours Materials required for examination Nil Items included with question papers Nil Question Leave Number Blank 1 2 3 4 5 6 7 8 9 Instructions to Candidates In the boxes above‚ write your centre number‚ candidate number‚ your surname

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    Solubility

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    shown in Figure 1. Figure 1. Examples of functional groups The class of compound is given under each structure; the functional group name‚ if different‚ is in parentheses. H N amine (amino) OH Br alkyl bromide (bromo) alkene (alkenyl) O O H aldehyde ketone (carbonyl) alkyne (alkynyl) O alcohol (hydroxyl) O N C nitrile epoxide ether O OH carboxylic acid (carboxyl) O Cl acyl halide (haloformyl) O O O O O O N H amide (carboxamide) anhydride ester carboxylic acid

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    the bond. Partial negative charges are found on the most electronegative atoms‚ the others are partially positive. Review the polarity of functional groups. Non-Polar Side Chains: Side chains which have pure hydrocarbon alkyl groups (alkane branches) or aromatic (benzene rings) arenon-polar. Examples include valine‚ alanine‚ leucine‚ isoleucine‚ phenylalanine. The number of alkyl groups also influences the polarity. The more alkyl groups present‚ the more non-polar the amino acid will be. This

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