Spectra Analysis Organic Chemistry Lab‚ CHEM 369 The University of Tennessee‚ Knoxville Dr. Smith Spectra 1: tert-butyl cyanoacetate Molecular formula: 141/13 = 10 R 11 => C10H10+11 => C10H21 C10H21NO2 – C3H10 = C7H11NO2 DBE: 2(#C - #H/2 - #X/2 + #N + 2)/2 =2(7 – 11/2 – 0/2 + 1 + 2)/2 = 3=> 1 double bond and 1 triple bond Mass spectrum table: m/z fragment |40
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Lizz Radican Lab 4 2/24/14 The Diels-Alder Reaction: Results and Problems 1.) Table 1: Mass‚ Percent Yield and Melting Points for Diels-Alder Reaction Products. Product Mass (g) Percent Yield Melting Points (°C) Anhydride 8.87 88.2% 164.4-165.8 Dicarboxylic Acid 3.20 71.9% 176.6-180.1 Unknown 1.66 111% 168.7-176.0 2.) See attached calculations. 3.) Table 2: Anhydride Product IR Data: Functional Group or Bond Peak Location(s) (cm-1) Peak Intensity Symmetric
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Abstract Chemically active extraction was used to separate two unknown compounds from each other and to determine what compound class each compound belongs. The solid unknown was purified by recrystallization and its melting point range was determined to be 109-111°C. The liquid unknown was purified by simple distillation and its boiling point was determined to be 95°C. An IR spectrum was collected for each of the purified compounds; the solid was determined to be 3-toluic acid and the liquid was
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It was noted that this is highly suggestive of a benzene ring‚ so the IR spectroscopy was analyzed for the presence of a benzene ring functional group. Aromatic benzene rings typically show IR peaks in the 1400-1500 and 3000-3100 cm-1 range. The signals seen on the IR of the unknown at 1454 and 3028 cm-1 range confirm the presence of an aromatic ring. Further analysis of the IR shows the presence of an OH functional group at 3339; OH functional groups typically appear at 3200-3500 cm-1 on IR.
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A- HPTLC Flavonoid profile of methanol extract M. concanensis leaves B- HPTLC Flavonoid profile of methanol extract M. concanensis flowers C- HPTLC Flavonoid profile of methanol extract M. concanensis seeds 4.2.3.1 C) HPTLC Phenol profile of M. concanensis Nimmo. HPTLC finger printing of M. concanensis was done by using selected solvent system Chloroform: Ethyl acetate: Formic acid (50%:40%:10%v/v) for leaf‚ flower and seed extracts‚ visualized under UV 254 and 366 nm showed more
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A Journal Critique on the Synthesis of New Derivatives of Resveratrol and to Explore its Potential Health Benefits Summary The goal of the study is to extract and purify resveratrol from fresh skin of black grapevine. Resveratrol is a member of a group of plant compounds called polyphenols and belongs to the class called stilbene. Resveratrol is produced by grapes and some plants in response to stress‚ injury‚ fungal or bacterial attack and ultraviolet radiation. Studies show that it makes chemotherapy
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[Type the company address] by Péter Békássy [Type the abstract of the document here. The abstract is typically a short summary of the contents of the document.] Spring 09 Wellness Hotel Balf **** 08 Fall Location and History Balf‚ located in North-Western Hungary is a historic Hungarian village: it was first mentioned in 1199‚ but it is known that the ancient Romans already inhabited the area: they were the first to explore the region’s healthy
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(and weaker base) than the electron- donating ethyl groups that are weaker acid (stronger base). Comparing aniline which is an aromatic amine and benzyl amine‚ which is an aliphatic amine‚ benzyl amine or aliphatic amines in general are stronger bases than aromatic amines. Also‚ it is because in aniline‚ the lone pair present in it is involved in resonance with the aromatic benzene making them less available to accept a proton. The addition of aniline with chloroform and alcoholic KOH is the carbylamine
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an electron pair (nucleus loving) * Electrophile- Accepts an electron pair (Electron loving) * Draw out every Arrow * Carbon must ALWAYS have four bonds * A catalyst must always be regenerated * An aromatic ring must always end aromatic! * Remember to write out all charges! * Mechanism is important to safely assemble an experiment‚ if a product or solvent is going to evaporate remember to attach a condenser * Is a catalyst needed? Is there already
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dye decolorization Project supervisor: Dr. R. Masalu Lab scientist: Mr. Chuwa INTRODUCTION: Due to rapid industrialization and urbanization‚ a lot of chemicals including dyes are manufactured and used in day-to-day life. Dyes are synthetic and aromatic molecular structural compounds. According to their dissociation in an aqueous solution‚ dyes can be classified as acid‚ direct reactive dyes (anionic)‚ basic dyes (cationic) and disperse dyes (nonionic). They are used on several substrates in food
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