Alfred Alder Feb. 7th‚1870 - May 28th‚ 1937 Alfred Alder is a psychologist whom was born in Vienna‚ Austria. As a child‚ Alfred suffered with Rickets. Rickets is a disease that is caused by a lack of vitamin D‚ calcium‚ or phosphate. Rickets leads to the softening and weakening of the bones. Because of Alder having this disease‚ he was restricted to a wheel chair until the age of four when he was able to walk on his own. Due to Alder having
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The literature value for the melting point range for Trans-9-(2-phenylethenyl)anthracene is 130-133 oC. The obtained range was lower than that at 120.3 to 123.8 oC. Because it is lower than the known value‚ this means the obtain product is not completely pure. Impurities in the compound can result in a decrease in the compounds melting point‚ which is observed here. The impurities could be 1-propanol due to an insufficient drying. If the experiment was performed again‚ the product would need to be
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Title: Recrystallization of Pure Phthalic Acid‚ Naphthalene‚ and Anthracene Introduction Recrystallization is a method used for purifying solid organic compounds. It is the most efficient method to purify and remove impurities from a solid to allow a crystal to grow. The method is when the solute in a hot solvent yields to a solution. Once the solvent cools‚ the solution is saturated with respect to the solute‚ which is when it recrystallizes. A crystal is the end result of the method and it is a
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Synthesis of trans-9-(2-Phenylethenyl)anthracene Introduction The purpose of this experiment was to convert carboxyl compounds into alkenes. While this reaction yields both the E and Z isomers‚ it is preferred over other reactions due to the lack of uncertainty of where the double bond is positioned. Also the stability of an ylide determines which isomer is the major product. 1 Experimental: Compounds Benzyltriphenylphosphonium chloride 9-Anthraldehyde 50% Aqueous NaOH DCM Product Formula weight
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Nor Amirah Farhana Nawawi Organic Chemistry Lab Report Bo Shen Title: Nucleophillic Substitution Reaction Introduction: This lab experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol
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Purpose: The purpose of this experiment was to prepare the Diels-Alder adduct of the unknown Conjugated diene in eucalyptus oil‚ to separate the adduct‚ and identify the unknown diene from the melting point of it¡¯s adduct. Introduction: This experiment was performed using techniques of heating under reflux‚ vacuum filtration‚ recrystallization‚ and melting point measurements. These techniques were used to separate the Diels-Alder adduct of the unknown conjugated diene in eucalyptus oil and
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a conjugated diene is formed. Conjugated dienes undergo a cycloaddition reaction with certain double bonds to afford cyclohexenes and related compounds. The reaction is named Diels-Alder. The Diels-Alder reaction is between 1‚3-butadiene and ethylene to produce cyclohexene + dienedienophile. The mechanism of the Diels-Alder reaction is classified as a [4+2] cycloaddition reaction‚ because one reactant (the diene)‚ contributes four carbon atoms and the other reactant (the dienophile) contributes two
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supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt 1) Sep 23 Tue Cis-1‚2‚3‚6-tetrahydro-4‚5-dimethylphthalic anhydride (Diels-alder reaction) (Expt 2) Sep 30 Tue Photochemical Reaction and Acid-catalyzed Rearrangement: Cycloaddition reactions (Expt.3‚ Part A) and Michael Addition (Expt 4‚ part A) Oct 7 Tue Michael Addition (Expt 4‚ part B) Oct 14 Tue Photochemical Reaction
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Diels-Alder Synthesis of Exo-Norbornene-cis-5‚6-Dicarboxylic Anhydride for Organic Chemistry Laboratory Instruction Kyle Myers and Dr. James Roark University of Nebraska at Kearney‚ Department of Chemistry‚ Kearney‚ NE 68849 Abstract A technique for the Diels-Alder synthesis of endo-norbornene-cis-5‚6dicarboxylic anhydride and its stereoisomer‚ exo-norbornene-cis-5‚6-dicarboxylic anhydride‚ is explained. To prove that each stereoisomer was made in the experiment and to distinguish between the
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Question In this experiment‚ α-D-glucopyranose is obtained. If we use (MeCO)2O/MeCO2Na to react with powdered D-glucose‚ β-D-glucopyranose will be resulted. Explain. 1 Expt. 2. Cis-1‚2‚3‚6-tetrahydro-4‚5-dimethylphthalic anhydride (Diels-alder reaction)
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