Analysis of Hydrocarbons Leoncito‚ Alyssa Lynn‚ Libatique‚ Keith Martin P.‚ Ligot‚ Nestlhyn B.*‚ Lim‚ Jamie Therese T. Department of Psychology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Four organic samples: hexane‚ cyclohexene‚ napthalene and toulene were given to serve as reference standards to characterize and distinguish four unknown given samples. Nitration‚ bromine and basic oxidation testswere conducted to classify the different samples from being an aliphatic‚ or aromatic
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Procedure: The addition of 4.0 mL cyclohexanol‚ 1.0 mL of 85% phosphoric acid‚ and one boiling chip‚ were all added to a 10 mL round bottom flask that would be attached to the end of an assembled simple distillation set up. A sand bath was placed atop a hot plate‚ and the simple distillation mechanism was lowered into the sand bath with the bottom most piece (the 10 mL round bottom flask) submerged about half way. The distillation process was completed after a sufficient amount of liquid distillate
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Formation of an Alkene by Alcohol Dehydration Lab Report Balanced Chemical Equation for the Main Reaction Mechanism The acid-catalyzed dehydration of secondary and tertiary alcohols involves non-isolable carbocation intermediaries. In the first step of the of the reaction mechanism below‚ a phosphoric acid catalyst adds a proton to the oxygen atom of the alcohol to form an oxonium ion. The OH is converted to a better leaving group as the positive charge on the oxygen weakens the carbon-oxygen
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In order to study the influence of reaction time‚ acetophenone with complex 2 (0.1 mol%) under standard conditions was monitored by GC-MS analysis taking 0.1 mL aliquots of the reaction mixture at intervals of 1 h. As can be observed in the conversion vs time plots‚ the formation of 1-phenylethanol was increased with the progress of the reaction‚ reached a maximum and then remained unchanged (Fig. 4). Reasonably good conversion (97.4%) for the formation of 1-phenylethanol was observed at the optimum
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E. 4‚2‚1‚3 1‚4‚2‚3 1‚3‚4‚2 4‚1‚2‚3 2‚1‚4‚3 OH OH HO OH 1 2 3 4 L. What is the IUPAC name of the following alcohol? A. S-2-ethyl-5‚5-dimethyl-R-cyclohexanol B. R-2-ethyl-5‚5-dimethyl-R-cyclohexanol C. S-2-ethyl-5‚5-dimethyl-S-cyclohexanol D. S-6-ethyl-3‚3-dimethyl-cyclohexane E. S-3-ethyl-R-6-S-6-dimethyl-cyclohexanol HO M. Predict the most likely mechanism(s) for the reaction of cis-3-methyl-chloro-cyclohexane with sodium methoxide (in methanol as the solvent) – circle one
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Upon addition of bromine‚ the brown color of bromine quickly disappears as the bromine adds to the double bond in the products. Addition of bromine to the fractional distillate caused the bromine to discolor. The addition of bromine to 2-methyl-cyclohexanol remains brown because there is an absence of double bound (saturation). Addition of potassium permanganate caused the solution to turn slightly brown but appeared immiscible as result of the unsaturation product. When analyzing the IR results confirmed
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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 quantitatively convert an enolizable ketone to its enolate salt? A) lithium diisopropylamide B) lithium hydroxide C) methyllithium D) pyridine E) diethylamine 8) 9) The α-halogenation of cyclohexanone: A) is slowed by the presence of acid. B) is catalyzed by base. C) requires one equivalent of base. D) is catalyzed by the sodium halide salt
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J. of Advanced Engineering and Technology Vol. 2‚ No. 2 (2009) pp. 281-283 Synthesis of 2-Acetylcyclohexanone Using Pyrrolidine-enamine Eun-SunYoo Department of Oriental Medicine Industry‚ Honam University‚ Korea (Received : May. 20‚ 2009‚ Revised : Jun. 02‚ 2009‚ Accepted : Jun. 12‚ 2009) Abstract : 2-Acetylcyclohexanone was synthesized by acylation reaction of acidic anhydride using enamine as organiocatalyst instead of a strong base‚ NaOH‚ resulting in milder reaction conditions. The
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product: C) Acetophenone = contains alpha hydrogen‚ aldol condensation product: D) Formaldehyde has no alpha hydrogen so aldol condensation is not possible. E) Benzophenone has no alpha hydrogen so aldol condensation is not possible. F) Cyclohexanone = contains alpha hydrogen‚ aldol condensation product: 4. Ketones are less reactive than aldehydes in aldol condensations because the carbonyl group on the ketone is more sterically hindered than the carbonyl group on the aldehyde. This sterical
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BACHELOR OF SCIENCE (HONS) BIOTECHNOLOGY YEAR 1 SEMESTER 1‚ 2 & 3 UDBB 1164 FUNDAMENTAL ORGANIC CHEMISTRY 0 EXPERIMENT 1 PROPERTIES OF HYDROCARBONS Introduction Hydrocarbons are compounds which contain only carbon and hydrogen‚ can be classified into several types‚ depending on their structure. Aliphatic hydrocarbons are divided into three classes: alkanes (e.g. methane‚ ethane and propane) have only single bonds‚ and are said to be saturated; alkenes (e.g. ethene and propene)
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