In this experiment the objective was to perform a Diels-Alder reaction using cyclopentadiene and maleic anhydride to synthesize the product‚ cis-Norbornene-5‚6-endo-dicarboxylic anhydride. The Diels-Alder reaction is one of the most important reactions in organic chemistry and was first investigated by Otto Diels and Kurt Alder in Germany. It is a [4+2] concerted cycloaddition reaction which involves a diene and a dienophile. The Diel-Alder reaction are mainly used for creating new carbon-carbon
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They are likely to be exothermic because the release heat and gases and exothermic reactions release energy. e) When the Mont Blanc and the Imo collided they released energy which was in the form of sparks the sparks then reacted with the benzene and the benzene reacted with the explosives resulting in that huge explosion. f) Try to make the reaction endothermic instead of exothermic. g) Reaction 1: decomposition Reaction 2: single displacement Reaction 3: Synthesis h) It is incorporated
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skin contact (irritant‚ permeator)‚ of eye contact (irritant)‚ of ingestion‚ of inhalation. Slightly hazardous in case of skin contact (sensitizer). Dichloromethane (CH2Cl2) 84.93 -96.7 Soluble in water Miscible in acetate‚ alcohol‚ alkane‚ benzene‚ CCl4‚ ether‚ CHCl3 Very hazardous in case of eye contact (irritant)‚ of ingestion‚ of inhalation. Hazardous in case of skin contact (irritant‚ permeator). Inflammation of the eye is characterized by redness‚ watering‚ and itching Sodium Bicarbonate
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The report “China Coal Tar Industry Report‚ 2013-2016″ by Research in China is now available at chinamarketresearchreports.com. Contact sales@chinamarketresearchreports.com with “China Coal Tar Industry Report‚ 2013-2016” in subject line and your contact details to purchase this report or get your questions answered. Synopsis Amid China’s economic slowdown in 2013‚ the coke price continued to fall and the coking industry remained weak‚ thus the situation of oversupply would not get changed in
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Multiplicity Details 7.2-7.4 1 Multiplet These peaks are indicative of hydrogen’s from the benzene rings. Since there are two of them in the molecule‚ there are two sets of hydrogens that are similar in energy and will split each other from the other set. 4.8 1 Singlet I believe this peak is coming from the hydrogen connected to the carbon that also connects to the anhydride ring. It is deshielded by the neighboring benzene rings. 3.5 1 Singlet This peak is coming from the hydrogen attached to the anhydride
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A glucose molecule is both large and polar‚ and rarely crosses a membrane by simple diffusion. 4. A benzene molecule is completely nonpolar and a little smaller than glucose molecule. Would it cross a membrane faster‚ or slower‚ than glucose? Why? Faster; a benzene molecule is nonpolar‚ so it is not held back by attraction to water the way that glucose is. Because it is smaller‚ a benzene molecule fits between phospholipids more easily than a glucose molecule. Page
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Heat flow diagram Potential Energy Diagram 2. The standard molar heat of combustion for benzene C6H6(l) is -6542 kJ/mol. a) Write a thermo chemical equation for the reaction. b) What is the enthalpy change per mole of CO2 (kJ/mol of CO2) c) Calculate the amount of heat energy released by the combustion of 100.0 g of benzene. d) Draw an enthalpy diagram for the reaction e) What mass of benzene must be combusted to heat a water tank of 5.00 L of water from 10.0 oC to 60.0 0C. 3. Communicate
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THE FRIEDEL-CRAFTS REACTION: ACETYLATION OF FERROCENE Ferrocene was acetylated in acetic anhydride and phosphoric acid. It proceeded via a Friedel-Crafts reaction without the use of organic solvents or strong Lewis acid. Operations and Observations A mixture of ferrocene (1.5 g‚ 0.008 mol)‚ acetic anhydride (5 mL) and phosphoric acid (1 mL 85%) was heated over a steam bath until all the ferrocene dissolved and the mixture darkened from orange to dark red. The mixture was then refluxed with
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carbohydrate fermentation of corn starch or molasses. The ready availability of propylene in the 1960s led to routes based on the dehydrogenation of isopropyl alcohol or cumene peroxidation. (1) By Cumene Oxidation (Hock Process). Propene is added to benzene [71-43-2] to form cumene [98-82-8]‚ which is then oxidized by air to cumene hydroperoxide‚ and cleaved in the presence of an acid catalyst like zeolite. Phenol [108-95-2] and acetone [67-64-1] produced in the process are recovered by distillation
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century. The final product will then be evaluated in comparison to salicylic acid made from benzene. Discussion – In this synthesis‚ methyl salicylate is the starting material or precursor and salicylic acid is the target product. It is the major constituent of wintergreen oil. The difference in structures between methyl salicylate and salicylic acid is a single functional group. In methyl salicylate the benzene ring is substituted by two functional groups‚ a hydroxyl group (-OH) and an ester group
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