"Synthesis of stilbene by wittig reaction" Essays and Research Papers

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    Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper (II) hydroxide

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    Synthesis of 1-bromobutane from 1-Butanol using the SN2 Reaction Abstract: The objective of this experiment is designed to study the synthesis of 1-bromobutane from 1 butanol using a SN2 reaction.. The product will then be analyzed using a flamed loop test by use of fire. Reaction Mechanism: CH3CH2CH2CH2—OH H+ CH3CH2CH2CH2— +OH2 Br- CH3CH2CH2CH2—Br + H2O 1-butanol

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    Grignard Reaction

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    Lab #5: Grignard ReactionSynthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used

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    Experiment 1: Synthesis of Copper Compounds Introduction This experiment involves the synthesis of compounds originating from pure solid copper. By applying solubility rules and the reactive properties of substances‚ many compounds which would otherwise be costly to extract from nature are able to be synthesized in the laboratory. Laboratory synthesized may sometimes be more economical than natural extraction‚ however it poses its own problems with the amount of substance that is actually yielded

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    copolymerization reaction was conducted‚ with the initiation by radical initiator 1‚1’-azobiscyclohexanecarbonitrile. CHN analysis‚ IR spectroscopy‚ and Proton NMR analysis were used to prove its composition and structure. 1. Introduction The American Chemical Society databases were investigated through Scifinder Scholar Version X to find any information about Butyl 2-Cyano-(3‚5 dichloro-phenyl)-2-propenoate. There was no previous information present. Then‚ the microscale synthesis and characterization

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    3-Nitrochalcone Synthesis

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    The objective of this experiment was to synthesize 3-nitrochalcone from 3- nitrobenzaldehyde. This was accomplished with a Diels-Alder reaction that utilized 3-nitrobenzaldehyde and acetophenone. After the reaction was completed‚ purification of the product was conducted using semi-microscale recrystallization. The melting point of the product was 136-141 oC‚ which is in the close vicinity of the literature melting point of 146 oC. The theoretical yield of 3-nitrochalcone was 0.253g and the

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    Synthesis Of Morphine

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    more readily absorbed by mouth.[9] There are 2 isoforms of CYP450 in the liver involved in codeine’s phase 1 metabolism: CYP2D6‚ activating 5-10% codeine to generate morphine in an O-demethylation reaction and CYP3A4‚ activating 10% of codeine to an inactive metabolite‚ norcodeine. The former reaction is comparably slower to the latter‚ resulting in codeine being deactivated faster than it’s activated. The CYP2D6 enzyme is genetically polymorphic‚ and 5-10% of the population have decreased CYP2D6

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    Multistep Synthesis

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    Acid Discussion: In this experiment‚ benzoin was oxidized by nitric acid to benzil‚ which in turn was rearranged to benzilic acid. Prior to beginning the experiment‚ the theoretical yield of benzil was discovered. The limiting reactant in the reaction‚ benzoin + nitric acid benzil‚ was benzoin at 0.00141 moles. This value was discovered by the initial amount of the reactants used: 0.30 grams benzoin and 1.5 ml Nitric Acid (see Eq 1). Using the moles of the limiting reagent benzoin‚ the theoretical

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    Experiment 4 Synthesis of Salicylic Acid Introduction Throughout history‚ botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants‚ but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature‚ it is called

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    Vyvanse Synthesis

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    diseases from schizophrenia‚ narcolepsy‚ and major depressive disorder. Vyvanse is different than past ADHD medications because it is a pro-drug. “Pro-drugs work as precursors to actual drugs. Through refining and secondary processes such as reactions with enzymes‚ pro-drugs can be

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