act like a hydride. This is important because it causes it causes it to be selective. A hydride has a negative charge so it will attack the positive carbon in a carbonyl group. This makes it more useful in synthesis reactions because if a molecule has a carbonyl group and carbon-carbon double bond‚ it will only attack the polar carbonyl group. LiAlH4 is much more reactive than NaBH4 because Al is more electronegative than boron which forms a stronger dipole making hydrogen more negative making it
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Experiment C. Aim: To protect one of two carbonyl groups (C1) in order to allow the other to react twice with a Grignard followed by removal of the protecting group by acid hydrolysis to give final product (C2). Method: Ethyl acetoacetate (30.03g)‚ ethylene glycol (15.01g) and toluene-p-sulphonic acid (0.13g) were added to a 250 cm3 round bottomed flask‚ containing a stirrer bar and toluene (100 cm3)‚ fitted with a condenser and dean-stark head. Solution was heated strongly under reflux using
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The Diels-Alder Reaction of Anthracene with Maleic Anhydride 1 The Diels-Alder Reaction of Anthracene with Maleic Anhydride Microscale Diels-Alder Reaction Leah Monroe March 6‚ 2003 Organic Chemistry Lab II Experiment performed on February 25 and 27‚ 2003 Abstract: This experiment involved a reaction between anthracene and maleic anhydride via a Diels Alder reaction to yield 9‚ 10-dihydroanthracene-9‚10-α‚ β-succinic anhydride. Anthracene was the diene and maleic anhydride was the
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Preparing Isopentyl Acetate by the Fischer Esterification Preparing Isopentyl Acetate by the Fischer Esterification Leah Monroe May 8‚ 2003 Organic Chemistry Lab II Experiment performed on April 29 and May 1‚ 2003 Abstract: The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water
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respectively. The calculated melting point of benzil was 90.1-91.6 which suggested some impurities‚ but the MP of benzilic acid was 149.3-151.5 which suggested a pure yield. The IR further confirmed the identity of benzylic acid with two OH peaks and the carbonyl peak. Introduction The purpose of this experiment was to synthesize benzilic acid from benzoin. Part A was omitted from the experiment and benzoin became the starting reagent. For this experiment a multistep synthesis was required. In the
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is an organic acid characterized by the presence of at least one carboxyl group. The general formula of a carboxylic acid is R-COOH‚ where R is some monovalent functional group. A carboxyl group (or carboxy) is a functional group consisting of a carbonyl (RR’C=O) and a hydroxyl (R-O-H)‚ which has the formula -C(=O)OH‚ usually written as -COOH or -CO2H. Carboxylic acids are Brønsted-Lowry acids because they are proton (H+) donors. They are the most common type of organic acid. Among the simplest
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these two sugar molecules: Answer - a - structural isomers. 6) Identify the asymmetric carbon in this molecule: Answer - b - 7) Which functional group is not present in this molecule? Answer - b - sulfhydryl. 8) Which action could produce a carbonyl group? Answer - a - the replacement of the hydroxyl of a carboxyl group with hydrogen. 9) Which functional group is most likely to be responsible for an organic molecule behaving as base? Answer - d - amino. 10) Given what you know about the
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Bonifacio‚ Prince Zero P.Date Performed: October 00‚ 2014 Group No. 1Date Submitted: October 00‚ 2014 Experiment No. 7 Unknown: 2 Compound: Table 6.1Physical Examination State Liquid Odor Smells like adhesive paste Color Pink-orange Flammability Flammable Table 6.2Physical Constant: Melting Point Parameter Experimental Theoretical (From Literature) Melting Point (oC) Trial 1 Trial 2 Average 88 88 86 86 Table 6.3Solubility Test Sample Solubility Solubility Class Water Ether 5% NaOH5%
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hydrogen bonds that exist which is why water has it’s unique qualities like high surface tension (refer to pg. 15 in txtbook if confused) Hydrophobic Functional Groups: Functional Group Name of Compound Formula Hydroxyl Alcohols R – OH Carbonyl Aldehydes Keytones R – C=O (end) R – C=O (middle) Carboxyl Carboxylic acids R – C=O \ OH Amino Amines Amides R – N – H \ H R – C=O \NH2 Sulfhydryl Thiols R – SH Phosphate Organic phosphates
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ACYL COMPOUNDS: SOAPS AND DETERGENTS Experiment # 8 I. Objectives To observe the general properties of carboxylic acids. To compare the acidity of carboxylic acids and phenols. To verify experimentally the interconversion among acyl compounds. To become familiar with the physical and chemical properties of fats and oils and to understand the chemical basis of these properties. To learn how to prepare soap. To compare the properties of soap and synthetic detergents. II. Data and
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