DMF was used as a solvent and AIBN (0.5% w/w of total monomer) as free radical initiator .The reaction was carried out at 70±2° C for 6 hour with constant stirring. After completion of the process it was cooled to room temperature and resultant polymer solution was poured in the large amount of methanol with stirring when polymer precipitated out. It was filtered and washed with methanol. The polymer was purified by repeated precipitation using methanol from solution in DMF and then it dried. 2.3 Preparation of PS
The goal of the experiment is to synthesize a bromohexane compound from 1-hexene and HBr(aq) under reflux conditions and use the silver nitrate and sodium iodide tests to determine if the product is a primary or secondary hydrocarbon. The heterogeneous reaction mixture contains 1-hexene, 48% HBr(aq), and tetrabutylammonium bromide and was heated to under reflux conditions. Heating under reflux means that the reaction mixture is heated at its boiling point so that the reaction can proceed at a faster rate. The attached reflux condenser allows volatile substances to return to the reaction flask so that no material is lost. Since alkenes are immiscible with concentrated HBr, tetrabutylammonium bromide is used as a phase-transfer catalyst.
Namely, we would be able to prepare compounds (3) as precursors for Cornforth rearrangement reaction from 2-aryloxazoles (2) which are obtained by cyclization of the corresponding glycine (1). Then compounds (3) would be transformed to compounds (4) by optimization of the reaction conditions. First, 2-aryl-5-methoxyoxazoles (2) were prepared by the method of Wipf’s protocol12) from methyl N-arylcarbonyl glycine methyl esters (1) in the presence of Et3N in DCE with PPh3 and I2 at room temperature for 19-24hr. This reaction proceeded in mild condition and afforded compound (2) in 80-97% yield by column chromatography (Table 1). Subsequently, we attempted preliminary examination by choosing 5-methoxy -2-phenyl oxazole (2a) as starting material to proceed whether Friedel–Crafts reaction.
Abstract In this laboratory, methanol is reacted with a tertiary alkyl chloride to make ether. The triphenylmethyl is isolated from the triphenylmethyl chloride. Methanol is then added and the class does the recrystallization . The methanol acts as a solvent for the reaction as a nucleophile. Because it is a tertiary benzylic halide, the reaction is considered an SN1 type.
The CO oxidation efficiency was confirmed as a function of the [Cu]/[Mn] ratio and the reaction time. The binary Cu-Mn oxides have a flexible metal valences (Cu1+/2+ and Mn3+/4+) which give increase to their specific properties and outstanding catalytic activities for CO oxidation. The enhanced catalytic performance can be explained by the improved lattice oxygen mobility, specific surface area, and pore volume into the Cu-Mn catalysts. The binary Cu-Mn mixed metal oxide has a good potential for practical applications to decrease CO in air
 investigated gas-phase hydrogenolysis of methyl formate over silica supported copper catalyst. CO, methyl formate and methanol was separated in a Porapack N column. In the hydrolysis of methyl formate, H2 was used as a carrier. Hydrolysis of methyl formate at the temperature range of 429-457 K and at partial inlet pressure in the range of 3,5-14,5kPa, the conversion never exceeded 10%. The selectivity for methanol was always above 95%.
TLC, NMR, and IR spectroscopy were used throughout the process to identify ferrocene and acetylferrocene in addition to evaluating the levels of purity. Evidence: The objective of our experiments was to prepare acetylferrocene from ferrocene. The overall reaction was carried out using 6.1 equivalents of liquid acetic anhydride to 1.8 equivalents of phosphoric acid and concluded with an aqueous workup with NaOH. The initial reaction mixture containing ferrocene, acetic anhydride, and phosphate acid was mixed on a hot stir plate. During this period, reflux was observed, and the mixture appeared dark brown in color.
The electrochemical behaviour of copper-1,10-phenanthroline (phen) complex in aqueous and in water-acetone mixed solutions was studied by CV-thin layer spectroelectrochemistry. In aqueous solution, [Cu(II)(phen)2]2+ complex electrochemically reduced to [Cu(I)(phen)2H2O]+ with maximum absorption at 405nm, and followed by a reversible chemical reaction. The formal potential, E0=0.078V, the number of electron transferred, n=1.0, and the equilibrium constant of the following chemical reaction, K=0.107 (0.005), were determined. In water-acetone mixed solution, [Cu(II)(phen)2]2+ reduced to [Cu(I)(phen)2]+ with maximum absorption at 435 nm. Keywords: CV-thin layer spectroelectrochemistry; copper-1,10-phenanthroline complex 1.
Degradation study of Product 01 using Aqueous 1N NaOH solution .The mechanism is operated by hydrolysis. The hydroxyl group (-OH) of NaOH attacks an electrophilic carbon of >C=O group which an removal of tertiary Nitrogen gives 4-MBA and PD as by products. Degradation study of Product 02 using Aqueous 1N NaOH solution . The mechanism is operated by hydrolysis. The hydroxyl group (-OH) of NaOH attacks an electrophilic carbon of >N-C=O which as rearrangement gives carbonial .
2CO + O2→2CO2 -------------------- (1) The oxidation of CO was carried out under the following reaction conditions: 100mg of catalyst with feed gas consisting of a lean mixture of 2.5 vol.% CO in air and total flow rate is maintained 60 mL/min. The air feed into the reactor was made free from moisture and CO2 by passing through it CaO and KOH pellet drying towers. The catalytic experiment was carried out in steady state conditions and the reaction temperature was increased from room temperature to 200oC with a heating rate of