In order to first perform the reaction, 1.5 mL of 4-methylcyclohexanol was added to a pre-weighed 5mL conical vial. The conical vial was then weighed to find the actual mass of 4-methylcycloheaxanol. Then, 0.4mL of 85% phosphoric acid was added to the conical vial using a plastic pipet. Six drops of concentrated sulfuric acid was then added to the vial using a glass pipet. A spin vane was then added before adding the Hickman head, water condenser and a drying tube packed with calcium chloride to the conical vial.…
The supervisor notices an excess amount of m-aminobenzoic acid stored away which is currently not being used for anything. This reactant can be used in certain reactions to produce valuable solutions for ophthalmologists. This product is going to waste, and our objective is to see if we can obtain a usable end product when reacting m-aminobenzoic acid with 2,4-dinitrochlorobenzene. In order for this reaction to take place, we must verify that we can obtain a product through the following nucleophilic aromatic substitution reaction:…
9) Put 4mL of stock solution and 1mL of water in a test tube to make the second solution.…
2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…
The limiting reagent in this reaction was methylbenzoate because it was starting material used in electrophilic aromatic substitution reaction (0.016 moles). There were 10.8 mmoles of H2SO4 and 2.4 mmoles HNO3 used in this experiment. The mass of the product obtained from this experiment was 0.1178g. Experimental melting point of the product was 72.6-75.7°C. A percent yield of 4.1% was obtained for this experiment. The major product obtained from this experiment was methyl-3-nitrobenzoate. The structure of the compound is shown…
The objective of this experiment was to illustrate electrophilic aromatic substitution by synthesizing p-nitroanilide (as well as ortho) from acetanilide by nitration. The para form was separated from the ortho form based on solubility properties using recrystallization techniques.…
wavelength Percentage concentration (methanol: water) Peak H value (height equivalent to a theoretical plate) (mm) 230nm 80:20 Phenol 0.0373 Benzophenone 0.0196 Naphthalene 0.0164 235nm 80:20 Phenol 0.0327 Benzophenone 0.0203 Naphthalene 0.0147 260nm 80:20 Phenol 0.0318 Benzophenone 0.0202 Naphthalene 0.0146 Figure 11: table for the height equivalent of the theoretical plates. It can be observed that the H values or height equivalent to a theoretical plate for phenol at the three wavelengths (230, 235, and 260nm) are all fairly similar, they are all around the 0.03mm mark (use of one significant figure), with all three H value being above 0.03mm. It can be seen in the results that the theoretical plate height decreases as the wavelength…
Chloroform, Acetone and Methanol) for sequential extraction. First of all plant materials were soaked in Hexane for 2-3 days with regular stirring. The mixture was then filtered by using Whatman No. 4 filter paper in to a glass beaker. 300ml of other solvent, Chloroform, was then added in the residue for 2-3 days. Similarly the mixture was filtered by using whatman No. 4 filter paper.…
Nitrous oxide is commercially manufactured by heating ammonium nitrate to 240C. Impurities such as ammonia and nitric acid in…
In the latter reaction, an organic base such as pyridine is usually added to react with the hydrogen chloride. A number of other methods can be used to synthesize the ester group. Among these are the addition of 2methylpropene to an acid to form t-butyl esters, the addition of ketene to make acetates, and the reaction of a silver salt with an alkyl halide.…
Abstract: Nitration of 2-benzylpyridine is supposed to yield 2-(2,4-Dinitrobenzyl) pyridine, when electrophilic aromatic substitution is the mechanism. Experiencing many pitfalls, however, has lead to the actual product obtained to contain the expected product, as well as many impurities. This report examines the supposed mechanism for the electrophilic substitution, a mechanism for the product’s photochromic property, as well as an explanation as to why the mechanism happens in this particular sequence.…
.2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…
References: 1Agrawal, Abhinash; Tratnyek, Paul, Reduction of Nitro Aromatic Compounds by Zero-Valent Iron Metal, Environ. Sci. Technol., 1995, 30 (1), pg. 153–160 http://pubs.acs.org/doi/abs/10.1021/es950211h.…
Figure 3. Some common electrophilic aromatic substitution reactions are: halogenation, nitration, sulfonation, Friedel-Crafts Acylation and Friedel-Crafts alkylation. These differ only in the…
Abstract: The fully propagated real time-dependent density functional theory method have been applied to study the laser--molecule interaction in 5- and 6-benzyluracil (5BU and 6BU). Different parameters like direction, strength, wavelength of the laser field have been chosen in order to obtain the most efficient excitation of molecules. Results show that the 5BU and 6BU molecular systems have different responds to the applied laser field and different, well defined laser field parameters can be chosen in order to have highly efficient and selective excitation behavior for the studied molecular systems. On the other hand, it was demonstrated that the molecular excitation is a very complex conjunction of different one-electron orbital depopulation-population…