improving yields of some poor yielding compounds. The article describes in detail six schemes or synthesis of six different complexes using microwave and how it differed from the traditional synthetic method. In the Scheme 1 ferrocene was synthesized. Traditional way required reaction conditions of 175oC for 45 min and had 20% yields‚ whereas the first trial of microwave synthesis or one-pot synthesis had a yield of 40-70%. However‚ this synthesis was found to be inconsistent
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Separating Ferrocene and Acetylferrocene by Adsorption Chromatography Separating Ferrocene and Acetylferrocene by Adsorption Chromatography Dry Pack Method Leah Monroe February 27‚ 2003 Organic Chemistry Lab II Experiment performed on February 18 and 20‚ 2003 Abstract: Adsorption column chromatography is one way to separate compounds out of a mixture. In this technique‚ a solid stationary phase called the adsorbent is packed in a glass column and an eluent‚ which is the mobile phase‚ moves
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Acetylation of Ferrocene 17. October 1996 Experiment #7 Introduction In this lab we will be utilizing the Friedel Crafts process of acetylation of ferrocene. Ferrocene is an atom of iron bounded by two aromatic rings. We will use some reagents that will cause the ferrocene to add either one acetyl group to an aromatic ring or add two acetyl groups to each of the aromatic rings. In order to determine how well this process had worked we employed: IR spectra analysis‚ column chromatography‚
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Experiment 42: Ferrocene Preparation Introduction: The purpose of the lab is to prepare ferrocene from ferrous chloride and cyclopentadiene. Ferrocene‚ an organometallic‚ is a combination of two cyclopentadienide ions with a ferrous cation‚ such that the six pi electrons binds every carbon equally to the metal forming a sandwich type structure. Ferrocene has the properties of both an activated benzene (undergoes electrophilic substitution reactions) and a ferrous ion (oxidation reaction). Glyme
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product mixture of ferrocene and Acetylferrocene 2. To separate and purify the components in the product mixture by column chromatography. 3. To check the purity of the components by thin-layer chromatography (TLC). 4. To calculate the yield of acetylferrocene and the percent recovery of unreacted ferrocene. Table of Quantity showing various physical properties Type of substance Molecular Formula Molecular Weight (g/mol) Density(g/cm3) M.P.(oC) B.P.(oC) Solubility Ferrocene C10H10Fe 186.03
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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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C.W. Lab Section 1 GTA N.C. Station 30 5. Acylation of Ferrocene Post-lab report Fill out the appropriate sections below. Show all work. Your calculated answers need to match the answers in the table and be consistent with significant figures. Results Amounts and units Initial weight of Ferrocene 0.225 g Moles of Ferrocene 1.21 * 10 ^ -3 mol Initial volume of acetic anhydride 1.00 mL Moles of acetic anhydride 0.0110 mol Initial
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Jessica Zebracki Organic Chem II Lab 2/15/15 Friedel-Crafts Acylation of Ferrocene and Column Chromatography Introduction: The intention of this lab is to analyze the formation of acetylferrocene using column chromatography. The Friedel-Crafts acylation reaction created acetylferrocene and diacetylferrocene‚ using phosphoric acid as a catalyst for the reaction between acetic anhydride and ferrocene (once applying heat). During column chromatography‚ a solution is passed through a filtration system
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Ferrocene and Acetylferrocene will be separated using column chromatography. Column chromatography is a separation technique that is used among many disciplines including biology‚ biochemistry‚ microbiology and medicine. Many common antibiotics are purified by column chromatography.1 Column chromatography allows us to separate and collect individual compounds. In this experiment‚ lumen will be the stationary phase‚ and the more polar substance will be retained on the stationary phase longer
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Introduction In a chromatographic separation process‚ different kinds of functional groups and number of functional groups of molecules will determine the separation. Depending on what kind of solute‚ solvent‚ and adsorbent used‚ molecules will experience the interaction during dynamic equilibrium. On a TLC plate‚ capillary tube is used to transfer o- and p- hydroxyacetopheone‚ taking advantage of capillary force to make small spotting. A 30:70 ether acetate: petroleum ether is used as a solvent
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