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Identify the initial site of reactions as well predict the major new product resulting from each of the following reactions
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- STARTING WITH 18MG OF 2-methyl-2-butanol JUST B PLEASE (b) theoretical volume of alkene mixture (ml) expected to be obtained in this experiment.Write out the reaction of Bromination of E-stilbene using chemdraw (ACS 1996 format). Include all reagents, products, solvents, reaction temperature and yield. Reagents used include glacial acetic acid, E-stilbene, and pyridinium perbromide, otherwise known as PHPB. Glacial acetic acid: 10mL Stilbene: 0.5g Perbromide: 1.0g Product yield (Precipitate) weight: 0.63gplease help me with also using correct sig figs and labelling units. #2
- Describe how the product is purified. 4,4'-DIBROMOBIPHENYL [Biphenyl, 4,4'-dibromo-] Submitted by Robert E. Buckles and Norris G. Wheeler1. Checked by R. S. Schreiber, Wm. Bradley Reid, Jr., and Robert W. Jackson. 1. Procedure In a 15-cm. evaporating dish is placed 15.4 g. (0.10 mole) of finely powdered biphenyl (Note 1). The dish is set on a porcelain rack in a 30-cm. desiccator with a 10-cm. evaporating dish under the rack containing 39 g. (12 ml., 0.24 mole) of bromine. The desiccator is closed, but a very small opening is provided for the escape of hydrogen bromide (Note 2). The biphenyl is left in contact with the bromine vapor for 8 hours (or overnight). The orange solid is then removed from the desiccator and allowed to stand in the air under a hood for at least 4 hours (Note 3). At this point, the product weighs about 30 g. and has a melting point in the neighborhood of 152°. The crude 4,4'-dibromobiphenyl is dissolved in 75 ml. of benzene, filtered, and cooled to 15°. The…Data: Density of p-phenetidine is 1.065g/mol Williamson Ether Synthesis: Mass of filter paper: 0.680 g Mass of filter paper and product: 1.482 g Melting Point: 134-136oC Amide Synthesis: Mass of filter paper: 0.686 g Mass of filter paper and product: 1.589 g Melting Point: 135-137oC Mixed Melting Point (product of amide synthesis mixed with Williamson Ether synthesis product): 134-136oC (a)Calculate theoretical yield of both williamson ether synthesis of phenacetine and amide synthesis of phenacetin. (b) calculate the percent yield of phenacetin obtained via williamson ether synthesis. (c) Calculate the percent yeild of phenacetin obtained via the amide synthesis.Show the detailed reaction mechanism (Suzuki Cross-Coupling Reaction) of benzo[b]quinolizinium-9-trifluoroborate and 9-arylbenzo[b]quinolizinium derivatives (show movement of electrons, reagents, conditions, final product and biproducts etc.)
- Please help. Questions in images. Solvent Rf of A Rf of B Rf of C 10% ethyl acetate-90% hexanes .12 .07 .01 20% ethyl acetate-80% hexanes .34 .29 .10 30% ethyl acetate-70% hexanes .53 .42 .22 40% ethyl acetate-60% hexanes .72 .61 .35Note the major differences between the IR of the starting material(vanillin acetate) and the product 4-acetoxy-3-methoxybenzl alcohol. (a reduction rxn using NaBH4 was performed)20- In the lab, you prepared phenylmagnesium bromide reagent using 0.81 g magnesium turnings (MW- 24.31 g/mol) and 3.6 mL bromobenzene (MW- 157.01 g/mol, density- 1.50 g/mL) in 15 mL diethyl ether (MW-74.12 g/mol, density - 0.713 g/mol). You then added 2.04 g benzophenone (182.217 g/mol) which was previously dissolved in 6.0 mL of diethyl ether solution to the phenylmagnesium bromide solution.What is the theoretical yield for triphenylcarbinol (MW- 260.33 g/mol) in grams? with the appropriate number of significant figures.