Simple Condensation Reaction Report
Week 1 a simple condensation reaction between benzaldeyde and hydroxylamine produced the product benzaldehyde oxime that was found to be in oil. The percentage yield of the experiment is 64%. The 36% loss can be due to the solution needing to be neutralised with glacial acid, there was no way to tell if the reaction was neutralised, to help increase yield the use of pH indictor paper to indicate whether the reaction was neutralised. As by using a rotary evaporator to remove the organic solvent may have caused small amounts of the product to evaporate off as it a low melting point solid, if the water bath temperature was too high would have caused to melt and evaporate off. As melting point was not measured was unable to tell whether the product is pure. From the infrared spectra, it showed that the reaction went to completion and benzaldehyde oxime was produced. Key aspects which indicate the reaction wen to completion are; Stretch of C=N (aldoxime) 1633 cm-1 indicating that oxidation of the aldehyde had occurred, and also 953 cm-1 …show more content…
From the NMR spectrum provided showed for the 3,5-diphenylisoxazoline, chemical shifts at 3.364 ppm and 3.781 ppm for the diastereotopic methylene hydrogens and chemical shift 5.731 ppm for the methine hydrogen, from the article indicated from the computer simulation that the diastereotopic methylene hydrogens chemical shifts 3.346 ppm and 3.783 ppm [2] and chemical shift 5.741 [2] for the methine hydrogen. With the simulation of 3,4-diphenylisoxazoline chemical shift 5.1 for the diastereotopic methylene hydrogens and chemical shift 4.5 for the methine hydrogen [2]. All three hydrogens produced doublets of doublets. This showed from the data provide and information from the article that the final product produced was in fact the 3,
Isoborneol Lab Report
894 Words | 4 PagesThe main objectives of the experiment were the following: to synthesize isoborneol, recrystallize the product, characterize it, and determine the yield of the product. To synthesize isoborneol, the reduction of camphor by reducing agent, sodium borohydride (NaBH4), was carried out (Figure 1). The utilized NaBH4 was determined to be active based on the bubbling observed in the reaction mixture. The bubbling is due to the evolution of hydrogen gas from the reaction of NaBH4 and methanol (Equation 1; Davis&Gotthbrath, 1962). NaBH4 + 4 CH3OH→ NaB(OCH3)4 + 4H2
Benzocaine Synthesis Lab Report
536 Words | 3 PagesThe reaction to synthesize benzocaine was known as a Fisher esterification reaction. The Fisher esterification was reaction between alcohol and carboxylic acid in the presence of acid. The reaction was used to form an ester. In the experiment, sulfuric acid acted as a catalyst and necessary for this reaction to occur. There was a change between the –OH group of carboxylic acid to an –OCH2CH3 group in the reaction.
Ester Synthesis Lab Report
452 Words | 2 PagesThe experimental yield for this experiment was 0.704g, and the calculated moles for the product is 0.00541 moles. Furthermore, the limiting reagent was calculated to be acetic acid because the moles calculated for acetic acid is 0.0622 moles and 0.0833 moles for isopentyl alcohol. The percent yield was then calculated to be 8.7 percent because the theoretical yield was calculated to be 8.098g. The appearance of the crude organic ester product was a liquid that looked yellowish. Additionally, the experimental refractive index came to be 1.3978, and the corrected temperature was calculated to be 1.3992.
O-Vanillin Lab Report
840 Words | 4 PagesThe purpose of this experiment is to perform a two step reductive amination using o-vanillin with p-toluidine to synthesize an imine derivative. In this experiment, 0.386 g of o-vanillin and 0.276 g of p-toluidine were mixed into an Erlenmeyer flask. The o-vanillin turned from a green powder to orange layer as it mixed with p-toludine, which was originally a white solid. Ethanol was added as a solvent for this reaction. Sodium borohydride was added in slow portion as the reducing agent, dissolving the precipitate into a yellowish lime solution.
Exothermic Reactions Lab
745 Words | 3 PagesObjective: The purpose of this lab is to show the relationship between chemical decomposition and exothermic reactions, as well as applying the scientific method. This is shown through the construction and launching of popper rockets. Introduction: Crucial things to know are exothermic reactions, Scientific method and chemical decomposition. The scientific method is a series of steps used by scientists to solve a problem.
Chemical Reaction Lab Report Essay
739 Words | 3 PagesSection 1: Introduction and Guiding Question Atoms are tiny particles that compose to make up matter. The atoms combine to create bonds. The bonds are substances that can go through physical and chemical changes. Chemical reactions can happen when two substances combine. Different mixtures of substances create different types of reactions.
Synthesis Of 3-Nitrochalcone Lab Report
391 Words | 2 PagesThe objective of this experiment was to use an aldol condensation reaction to synthesize 3-nitrochalcone from 3- nitrobenzaldehyde. This was accomplished with a Diels-Alder reaction that utilized 3-nitrobenzaldehyde, acetophenone, ethanol, and sodium hydroxide. The mechanism for the synthesis of 3-nitrochalcone is presented in Figures 1 and 2. The alpha carbon on the acetophenone is deprotonated. This is followed by the attack of the alpha carbon anion on the carbonyl carbon on the 3-nitrobenzaldehyde.
Nucleophilic Substitution Reactions Lab
1039 Words | 5 PagesThe possible explanations and changes to make are similar to the previous questions. Conclusion and Future Experiment 18. The identity of the product and unknown were 4-tert-butylbenzyl phenol ether and tert-butyl phenol respectively. The key to making this discovery was the melting point and TLC results!
Electrochemistry Lab Report
1529 Words | 7 PagesWilfrid Laurier University, ON, Canada. Observation Results: Table 1: Qualitative Observations of all reactants and products in experiment Reactant/ Product Before During
Aromatic Aldehyde Formal Report
1073 Words | 5 Pagesin the first step benzoic acid was reacted with excess of thionyl chloride using acetonitrile as a solvent and keeping the mixture on an ice bath for 3-4 hours (labeled as reaction mixture a) In the second step gemcitabine hydrochloride along with 3eq tri-ethyl amine and using ethanol again as a solvent was stirred for 15-20 minutes without ice-bath. next with a poisterizing tube the reaction mixture a was drop wise added to reaction mixture b yielding a third and final, reaction mixture c giving off white fumes of socl2. it is stirred for 19 hours and 15minutes at 80c and colour changes to light yellow The preparation of benzoyl chloride from benzoic acid using thionyl chloride at 0’c is an in-situ preparation procedure: FILTERATION:
Wittig Reaction Lab Report
1125 Words | 5 PagesThis was proved by utilizing the IR spectrum to verify the C =O was not in the final product as it lacked the 1640 cm-1 peak. The melting point of 113-115 degrees C proved that the final product obtained was the E-Stilbene. The TLC plate proved that the E and the Z product was produced, show cased by the double intensity of the DCM spot to the final product’s spot, both which had an Rf of 0.92. The double intensity proved that both products were produced, but through heating and filtering, the Z-Stilbene was
Cetane Number Fuels Lab Report
938 Words | 4 PagesThe oil sample was mixed with neutralized alcohol. Heat the mixture of oil and alcohol on hotplate until it almost boiling. Added few drops of phenolphthalein to the mixture and titrate with 0.1M NaOH solution. Swirl the flask to thoroughly mix the contents. The pink color was appeared which is end point of reaction.
Oxopentanoic Acid Synthesis Lab Report
2253 Words | 10 PagesExperimental Methods: 1. SYNTHESIS OF 4-BENZOYL BUTYRIC ACID METHYL ESTER Materials required * 5 oxopentanoic acid : 2 gm (Aldrich) * Methanol : 50 ml * Acetic Acid (Rankem) Procedure: * 2 grams of 5 oxopentanoic acid was weighed and placed in a round bottom flask and then to it 50 ml of methanol was added. It was placed on a hot plate and the temperature was increased to 50 degrees under ambient air conditions.
Carp Fish Study
2294 Words | 10 PagesA sample of fish oil (50 mg) was transferred into screw-cap vial. 2 ml benzene and 10 ml sulfuric acid (1%) in absolute methanol were added. The vial was covered under a stream of nitrogen before heating in an oven 90 °C for 90 minutes. Ten ml of distilled water were added to the cooled vial and the methyl esters in each vial were extracted with 5 ml of petroleum ether for three times. The three petroleum ether extracts were combined and concentrate to its minimum volume by using a stream of nitrogen.
Benzoic Acid Lab Report
767 Words | 4 PagesAbstract The unknown concentration of benzoic acid used when titrated with standardized 0.1031M NaOH and the solubility was calculated at two different temperatures (20◦C and 30◦C). With the aid of the Van’t Hoff equation, the enthalpy of solution of benzoic acid at those temperatures was determined as 10.82 KJ. This compares well with the value of 10.27KJ found in the literature.
More about Simple Condensation Reaction Report
Isoborneol Lab Report
894 Words | 4 PagesBenzocaine Synthesis Lab Report
536 Words | 3 PagesEster Synthesis Lab Report
452 Words | 2 PagesO-Vanillin Lab Report
840 Words | 4 PagesExothermic Reactions Lab
745 Words | 3 PagesChemical Reaction Lab Report Essay
739 Words | 3 PagesSynthesis Of 3-Nitrochalcone Lab Report
391 Words | 2 PagesNucleophilic Substitution Reactions Lab
1039 Words | 5 PagesElectrochemistry Lab Report
1529 Words | 7 PagesAromatic Aldehyde Formal Report
1073 Words | 5 PagesWittig Reaction Lab Report
1125 Words | 5 PagesCetane Number Fuels Lab Report
938 Words | 4 PagesOxopentanoic Acid Synthesis Lab Report
2253 Words | 10 PagesCarp Fish Study
2294 Words | 10 PagesBenzoic Acid Lab Report
767 Words | 4 Pages