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Jun 29, 2012

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Oxidation of Alcohols

Oxidation of Alcohols. A Peer-Assisted Learning Demonstration. Discussion.

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Development of N-methyl-formamide Production Technology

2. Uses for N-methyl-formamide

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Novel Bis ( phospholyl )amine Ligands in Selective Ethylene Oligomerisation

Tom Stennett - University of Bristol, UK 10 th European Workshop on Phosphorus Chemistry 19.3.2013. Novel Bis ( phospholyl )amine Ligands in Selective Ethylene Oligomerisation. Linear α -Olefins. Linear hydrocarbons with a terminal double bond.

364 views • 23 slides

Arenes

Arenes. Molecules that contain a benzene ring because they are derivatives of benzene. Comparing reactions. Examples of Arenes : . Methylbenzene. Methoxybenzene. Methylbenzene (also known as Toluene). The methyl group pushes electrons towards the benzene ring

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Lipid Oxidation with special consideration for n-3 fatty acids

Lipid Oxidation with special consideration for n-3 fatty acids. By Amber Lynn Vecera. What’s the big deal?. Generally, very low oxidative stability Can potentially “design” food systems that allow for higher oxidative stability Antioxidants Encapsulation Modified Atmosphere Packaging

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11.10 Reactions of Arenes: A Preview

11.10 Reactions of Arenes: A Preview. 1. Some reactions involve the ring. 2. In other reactions the ring is a substituent. 1. Reactions involving the ring. a) Reduction Catalytic hydrogenation (Section 11.4) Birch reduction (Section 11.11)

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Arenes

Arenes. Introduction. Hydrocarbon that contain rings which stabilised by electron delocalisation are called aromatic hydrocarbon or arenes The simplest yet most important member of the aromatic hydrocarbons is benzene. Naming Aromatic Hydrocarbon.

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Arenes: Benzene

Arenes are aromatic hydrocarbons containing 1 or more benzene rings. A benzene ring is a ring of 6 carbon atoms , each of which is also bonded to a hydrogen atom, with molecular formula C 6 H 6. Arenes: Benzene.

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Selective Carbonylation of Dimethyl Ether to Methyl Acetate Catalyzed by Acidic Zeolites

Selective Carbonylation of Dimethyl Ether to Methyl Acetate Catalyzed by Acidic Zeolites. Huimin Zhan 2013.7.19. Background. CH 3 OCH 3 +CO CH 3 COOCH 3. Catalyst ：. 400-500K ， 1.5MPa. CH 3 OCH 3 +CO CH 3 COOCH 3. H-MOR.

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Nitration of Methyl Benzoate

Nitration of Methyl Benzoate. Multistep Synthesis. 50%. 50%. C. B. A. Yield =. 25%. Nucleophilic Aliphatic Substitution. Electrophilic Aromatic Substitution. ARENE SUBSTITUTION. E +. + H +. The electrophile REPLACES H +. E - Y. + H +. Charge o and p. Nitration of Benzene.

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Selective Oxidation of 25,27-di-(3’-formylphenoxylethoxy)- p - tert -butylcalix[4]arene

Selective Oxidation of 25,27-di-(3’-formylphenoxylethoxy)- p - tert -butylcalix[4]arene. Selective Oxidation of 25,27-di-(3’-formylphenoxylethoxy)- p - tert -butylcalix[4]arene. Selective Oxidation of 25,27-di-(3’-formylphenoxylethoxy)- p - tert -butylcalix[4]arene.

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Reactions of arenes

Reactions of arenes. L.O.: Outline the mechanism of nitration. Outline the mechanism of of acylation. Identify the reactive intermediates involved in nitration and acylation. Name the mechanisms of both reactions. STRUCTURE OF BENZENE. STRUCTURE OF BENZENE. STRUCTURE OF BENZENE. NITRATION.

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methyl

methyl. ethene. allyl. butadiene. Stabilization energy. 0. eV. Interaction of p orbitals in polyenes at the Huckel level of theory. Energy eV. 12.3. 14.5. 24.8. Stabilization Energy. Energy of electon on isolated p orbital. 2 x. 2x (-11.4 eV). 2 x.

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STAND ARENES TANGRAM

STAND ARENES TANGRAM. Le jeu de Tangram se compose de sept pièces qui peuvent se juxtaposer pour former un carré * 5 triangles, de trois tailles différentes ; * 1 carré ; * 1 parallélogramme.

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ARENES

ARENES. Part 6 Aromatic chemistry Bonding understand the nature of the bonding in a benzene ring, limited to planar structure and bond length intermediate between single and double. Delocalisation stability

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Oxidation of alcohols

Oxidation of alcohols. Acidified potassium permanganate (H + /KMnO 4 ), and acidified potassium dichromate (H + /K 2 Cr 2 O 7 ) are important oxidising agents. They will not react unless acid is present. Purple H + /MnO 4 - turns colourless when it has reacted.

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Selective Partitioning of N-CAM isoforms with Triton X-100

Selective Partitioning of N-CAM isoforms with Triton X-100. James E. Haley, Ph.D. College of Mt. St. Vincent , N.Y. Experimental Objectives. Overview of N-CAMs Culture of Rat Brain Astrocytes Resolution of Proteins: IEF & 2-D PAGE Western Blot Analysis of N-CAMs Results/ Conclusions.

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Catalytic C-C Bond Formation Accomplished by Selective C-F Activation of Perfluorinated Arenes

Catalytic C-C Bond Formation Accomplished by Selective C-F Activation of Perfluorinated Arenes. Thomas Schaub, Marc Backes, and Udo Radius*. J. Am. Chem. Soc. 2006 , 128 , 15964. C-C Coupling Reactions. X = I, Br and CH 3 SO 2. Kumada reaction Negishi reaction Stille reaction

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N-methyl-2-pyrrolidone market

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N-Methyl-2-Pyrrolidone Market

The N-Methyl-2-Pyrrolidone Market will expand at a healthy CAGR of ~6% during the forecast period of 2019-2027. Asia Pacific remains a fragmented, yet attractive for NMP market

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ARENES (Aromatic hydrocarbons)

ARENES (Aromatic hydrocarbons). Benzene structure. All symbols are equivalent and used for description of benzene molecule. Heats of Hydrogenation as Indicators of Stability. The addition of H 2 to C=C normally gives off about 118 kJ/mol – 3 double bonds would give off 356 kJ/mol

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Purposes of Oxidation

Purposes of Oxidation. Removal of iron, manganese, sulfides Removal of Taste & Odor Destruction of color Removal of synthetic organics chlorinated solvents pesticides, etc. Partial Degradation of natural organics aids subsequent treatment. Oxidation: Types of Oxidants. Oxygen ( O 2 )

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