Organic Chemistry I Spring 2013 Practice test 1. Name the following compounds: a. 5-tert-butyl-7-isopropyl-6-sec-butyl-undecane b. cis-2-(5‚6-dimethylheptyl)-6-(3-methylpentyl)piperidine c. trans -2-nonyl-3-octyl-tetrahydrofuran d. trans-1‚6-dimethylbicyclo[4.3.0]nonane e. cis-6‚8-ditert-butylspiro[3.5]nonane f. 1‚6-dimethylcyclohexene g. (Z)-3-bromo-4-fluoro-5-methyl-oct-4-ene h. (E)-8-(1-chloroethyl)nonadec-8-ene 2. Draw the structures of the following compounds: a b e c
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Chem 3650 Organic II Lab Lecture Summer 2013 Instructor: Victoria Dougherty M.S. Victoria Dougherty M.S. Office: BSE 1.340 Phone: 458-5473 (I do not have voicemail) Office Hours: Tuesday and Thursday: noon – 1:00 pm (or by appointment) Monday and Wednesday: 1:00 pm to 2:00 pm E-mail: victoria.dougherty@utsa.edu (put Chem 3650 in subject) Lab instructors and sections: Lab instructors Email (put Chem 3652 in subject) Section(s) Times Marilyn Wooten PhD. marilyn.wooten@gmail.com 01T 7:30–11:20
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I. Results Started with : 40mL acetic acid 4.005g PHPB 2.00g trans-stilbene 1.54g KOH 13mL methanol 21mL ethylene glycerol 2.726g stibene dibromide produced Actual yield : 0.818g diphenlacetylene Melting Point : 62 - 75 degrees Celsius II. Discussion The experimental melting point range of our purified product was 60 degrees Celsius when researched‚ but when done experimentally was only. This began around the right range‚ but ended up being much higher than the literature value
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What type of product results when 3-pentanone reacts with dimethylamine? A) enolate B) enol C) enamine D) imine 5) E) amide 6) The relationship between ketones and their corresponding enols is one of: A) enantiomers B) diastereomers. C) tautomers. D) cis-trans isomers. E) allotropes. 6) 7) Which of the following ketones will give a positive iodoform test? A) 2-methyl-3-pentanone B) 3-hexanone C) 4-heptanone D) 2-hexanone E) cyclohexanone 7) 1 8) Which of the following reagents will
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alkene required. [2 marks] e) Write the complete chemical reaction equation for the halogenations reaction in (d). [3 marks] f) The alkene formed in (d) is synthesized from 2-pentyne. Suggest the methods required to form (i) cis-alkene and (ii) trans-alkene. [4 marks] [TOTAL: 25
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the following compounds. (a) 3-methylpentane about the C2-C3 bond (b) 3‚3-dimethylhexane about the C3-C4 bond 2. Using what you know about conformational energetics of substituted cyclohexanes‚ predict which of the two decalin isomers (cis or trans) is more stable. Explain you reasoning. 3. The most stable form of the common sugar glucose contains a six-membered ring in the chair conformation with all the substituents equatorial. Draw this most stable conformation of glucose.
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Preparation of 4-bromoaniline Introduction Aromatic compounds tend to undergo electrophilic aromatic substitutions rather than addition reactions. Substitution of a new group for a hydrogen atom takes place via a resonance-stabilized carbocation. As the benzene ring is quite electron-rich‚ it almost always behaves as a nucleophile in a reaction which means the substitution on benzene occurs by the addition of an electrophile. Substituted benzenes tend to react at predictable positions. Alkyl groups
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properties of the hydrocarbons. Several reactions such as Bromination‚ oxidation‚ and the addition of sulfuric acid were done to understand the chemical properties as well as the possible products that may form by each of the classification of hydrocarbons. Preparation of acetylene was also done in this experiment. The properties of the formed acetylene such as the reaction of the acetylene as it undergo Ammoniacal silver nitrate test‚ Bromination and oxidation. The reagents that were used to perform
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REACTIONS OF HYDROCARBONS Vanessa P. Manibpel De La Salle University - Dasmariñas ABSTRACT Five substances namely Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively and the rest retain the purplish color of KMnO4. On the other hand
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MANGOSTEEN FRUIT | | | | The Mangosteen Fruit is by far the most exotic fruit in the world. It has been researched and studied so much that this site is dedicated to bring you all that information and research. | | The Mangosteen contains several classes of phytonutrient antioxidants and is the only place in nature to contain a broad spectrum of a new class of phytonutrients called Xanthones. The potent effects on human health of the Mangosteen have been observed for centuries in Southeast
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