Experiment #2

Questions 1015MSC Chemistry of Biological Systems II 186403 1. What is the purpose of the concentrated sulfuric acid in the preparation of aspirin? 2. Anhydride means "without water". Suppose 1 M H₂SO4 were substituted for the concentrated H₂SO4. Would the yield of acetylsalicylic acid be increased, decreased, or unaffected by the substitution? Explain.

methyl alcohol and ethyl alcohol are poor extraction solvent. why?

Draw the structure of the major organic product you would expect from the reaction of 1-bromopropane with Nal. You do not have to explicitly draw H atoms. • Draw only the product derived from 1-bromopropane. Do not draw other organic by-products.

Starting Materials CH3B CH3CH2BR CH3CH2CH,Br C6H5Br Reagents Mg, ether 1. a. 2. 13CH2-13C-OH b. 13CO2 then H3O* 3. LIAIH4 then H3o* PBr3 CO2 then H30* C. 4. d. 5. C6HsCH2Br е. Select a starting material and a series of reagents necessary to synthesize this compound in as few steps as possible. Enter your selection as a number for the starting material, followed by the letters of the reagents, in the order that you wish to use them, i.e. 3abcf.

I need a detailed diagram or table of every reaction in organic of: alcohol, aldehyde, ketone, epoxide, ester, ether, amide, anhydride, carboxylic acid, and functional derivatives of carboxylic acid. How to go from one to another, and the elaborated cycle of the reactions

What is the theoretical yield and limiting reagent for the reaction of benzophenone with sodium borohydride to form diphenyl methanol as described in the experiment provided if you begin with 1.75g of benzophenone in 25 mL of 95% ethanol and add 0.75 g of sodium borohydride portion wise over 45 minutes?

Pls solve this question correctly in 5 min i will give u like for sure Balance the chemical equation of a reaction formed by the bromination of trans-cinnamic acid if we started with 0.3088 grams of trans cinnamic acid and 1mL of bromine. The product of this reaction is 2,3 - dibromo - 3- phenylpropanoic acid

The following test on compounds X and Y were done and the results, list the observations in the table below. Complete the inferences for each test.

organic Chemistry II

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.

I need help on this question, please!

In this lab you are performing your first organic synthesis and safety information on all the materials you are using must be obtained. Companies are required to provide material safety data sheets (MSDS) for chemical compounds they sell. Please examine the MSDS for acetic anhydride, available here. You will find GHS pictograms within the sheet that summarize the main hazards of this compound. The pictograms are essentially the same as the symbols on WHMIS labels, available here for reference. Based on the pictograms, whatare the main hazards for acetic anhydride? Select as many answers as appropriate Select one or more: Carcinogen Gas under pressure Acute oral or inhalation toxicity Corrosive Flammable material Oxidizing material Self-reactive substance

In this lab you are performing your first organic synthesis and safety information on all the materials you are using must be obtained. Companies are required to provide material safety data sheets (MSDS) for chemical compounds they sell. Please examine the MSDS for salicylic acid, available here. You will find GHS pictograms within the sheet that summarize the main hazards of this compound. The pictograms are essentially the same as the symbols on WHMIS labels, available here for reference. Based on the pictograms, whatare the main hazards for salicylic acid? Select as many answers as appropriate Select one or more: Acute oral or inhalation toxicity Flammable material Carcinogen Self-reactive substance Gas under pressure Corrosive Oxidizing material

prepare a flow sheet for the preparation of benzoic acid from a) bromobenzene and magnesium and b) phenylmagnesium bromide and carbon dioxide. using your knowledge of the physical properties of the solvents, reactants, and products, show how the products can be purified, indicate which layer should contain the product in the liquid/liquid extraction steps.

You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.Your colleague is helping you develop the urine test. They suggest that the urine should be adjusted to a pH above 7 before extracting with the organic solvent. Why is this necessary? Support your explanation with a full arrow-pushing mechanism for the reaction that would occur if the pH was below 7. Include all formal charges, intermediates (if applicable) and products.

You are employed as a coop student at the Drug and Alcohol Testing Association of Canada (DATAC) developing analytical tests for sports doping agents. You are asked to prepare a procedure for the extraction of methylphenidate, the active compound in Ritalin, from urine samples (consider them as simple aqueous layers, you do not need to consider other components!). The goal of the procedure is to extract the methylphenidate into an organic layer which will then be evaporated, and the residue will be tested for the drug.You find that methylphenidate is highly soluble in 2-methyltetrahydrofuran, a bio-renewable solvent. Draw the structure of 2-methyltetrahydrofuran and give two reasons why it is a good solvent choice for liquid-liquid extraction.

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Be sure to answer all parts. Oct-1-yne (HC=CCH,CH,CH,CH2CH2CH3) reacts rapidly with NaH, forming a gas that bubbles ou of the reaction mixture, as one product. Oct-1-yne also reacts rapidly with CH3MgBr, and a different gas is produced. Write balanced equations for both reactions and identify the gases formed. + hydrogen v gas + NaH draw structure... + CH,MgBr methane vgas draw structure ...