Synthesis of DEET Abstract: For this experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized
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values obtained from unknown and compare it with the standards. The amino acid identity is the one that has the lowest absolute value of difference with the unknown. In using the thin layer chromatography in the experiment‚ Sanger’s method was also incorporated to determine the proper sequence of the dipeptide. It is a colorimetric method that uses 1- fluoro- 2‚4- dinitrobenzene (FDNB) and reacts with free amino ‚ imidazole and phenolic groups forming DNP derivatives. DNP derivatives then have been hydrolyzed
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structures‚ or if given structures‚ identify name of each of the following types of compounds: a. Esters b. Amines c. Aromatic compounds including polynuclear aromatic hydrocarbons. 2. Identify structures that are products of the following reactions: a. Grignard reaction including identification of the nucleophile. b. Conversion of nitriles into carboxylic acids and acid derivatives c. Diels-Alder reactions d. Reduction of aldehydes and reagents used for that reaction. e. Fischer esterification
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(the trends on HW4)‚ Fischer‚ acidic/basic hydrolysis of esters/amides/nitriles‚ CH2N2‚ acid chloride formation (rxn only)‚ acid chloride rxns with esters and amides. 2 Rxn of carboxyllic acid derivatives w/organometallic reagents‚ Cuprate preparation and rxn‚ Reduction of carboxyllic acid derivatives‚ basic/acidic aldol rxn (dimerization‚ cross aldol‚ selective enolate formation)‚ basic/acidic aldol dehydration‚ Claisen and Dieckmann Condensations‚ Michael addition‚ Robinson annulation‚ Enolate
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Chem 31.1 Post Lab 3 CARBONYL COMPOUNDS AND CARBOHYDRATES HYDROLYSIS OF POLYSACCHARIDES - - Susceptible to both nucleophiles and electrophiles Presence of C=O TEST FOR ALDEHYDES AND KETONES - - Reaction with 2‚4-DNP (Dinitrophenylhydrazine) Positive: Formation of yellow precipitate IODOFORM TEST - Carbonyl compounds: Methyl ketones will give a positive result Postive: Yellow precipitate (CHI3) MOLISCH’S TEST for carbohydrates - TOLLEN’S TEST – for aldehydes
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* Introduction to Organic Chemistry Understand the basis of drawing organic structures Depicting 3-D structures in 2-D Most organic compounds have a three-dimensional structure. How do we represent structures on our two-dimensional page? For example‚ methane is a tetrahedral molecule: Bonds in the plane of the paper: Bonds coming towards the observer: (out of the page) Bonds going away
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Lucas test‚ DNPH test and Iodoform test. Three samples got positive result in dichromate test and one in Tollens test. Lucas test got one sample that has a positive result‚ DNPH test got two positive results and Iodoform test also got two. All unknowns are identified from which of the samples are they. Alcohols‚ aldehydes and ketones are excellently recognized after the experiment. Introduction Oxygen is a chemical element that most living things need. It surrounds the atmosphere and sustains
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RESULTS: Solution | pH Value | Aniline | 7 | Benzyl aniline | 12 | Diethylamine | 10 | Table 1: Basicity of Amines Solution | Odor of Solution | Aniline added with chloroform and alcoholic KOH | Unpleasant smell | Table 2: Carbylamine Test (odor of solution) Solution | Observations | Aniline added with concentrated H2SO4 | -Salt formation upon addition of sulfuric acid- Gelatinous‚ pale yellow solution | Table 3: Salt Formation Solution: | Residue Formation: | pH level:
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90.html Business Wire Hyrax Energy‚ Inc. (2012‚ October 27). About. Retrieved from Hyrax Energy: http://hyraxenergy.com/ Pepsi Co.‚ I Press Release. (2012‚ October 26). Clariant AG : Clariant and Wilmar establish Joint Venture for amines and selected amines derivatives. Muttenz‚ Singapore. Wheelen‚ T.‚ & Hunger‚ D. (2012). Strategic Management and Business Policy Toward Global Sustainability. Upper Saddle River‚ New Jersey: Pearson. Williams‚ B. (2012‚ October 26). Alternative Energy. Retrieved
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D1: Pharmaceutical drugs D.1.1 List the effects of medicines and drugs on the functioning of the body. Drug or medicine is a substance that does one or more of the following: Alters physiological state – consciousness‚ activity level‚ coordination Alters incoming sensory experience Alters mood or emotion The active ingredients in drugs and medicines can be isolated from a plants and animals or synthesized artificially. Drugs supposed to assist human body’s
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