CH H3C CH3 HO, (b) from benzene and butanoic acid CH COOE (c) CH3 from (d) Compound A, the active ingredient in some insects H,C N(CH,CH3), from m-chlorotoluene
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- In an experiment, triphenylmethanol is prepared using the Grignard reaction. The Grignard reaction involves preparation and reaction of a very nucleophilic organo-magnesium compound. The Grignard reagent is very reactive and is easily destroyed by reaction with atmospheric water, oxygen, or carbon dioxide. The Grignard reagent must be prepared under strict anhydrous conditions (dry glassware, dry solvent). The volative solvent, diethyl ether, helps to prevent oxygen or carbon dioxide from entering the reaction vessel. Reaction of bromobenzene with magnesium in ether produces phenylmagnesium bromide. This Grignard reagent then reacts with methyl benzoate to produce the corresponding alkoxide. Reaction of the alkoxide with aqueous acid then produces the alcohol. Why is it unwise to begin addition of the solution of carbonyl compound to the Grignard reagent before the latter has cooled to room temperature?In an experiment, triphenylmethanol is prepared using the Grignard reaction. The Grignard reaction involves preparation and reaction of a very nucleophilic organo-magnesium compound. The Grignard reagent is very reactive and is easily destroyed by reaction with atmospheric water, oxygen, or carbon dioxide. The Grignard reagent must be prepared under strict anhydrous conditions (dry glassware, dry solvent). The volative solvent, diethyl ether, helps to prevent oxygen or carbon dioxide from entering the reaction vessel. Reaction of bromobenzene with magnesium in ether produces phenylmagnesium bromide. This Grignard reagent then reacts with methyl benzoate to produce the corresponding alkoxide. Reaction of the alkoxide with aqueous acid then produces the alcohol. Ethanol is often present in the technical grade of diethyl ether. If this grade rather than anhydrous were used, what effect, if any, would the ethanol have on the formation of the Grignard reagent? Explain.In an experiment, triphenylmethanol is prepared using the Grignard reaction. The Grignard reaction involves preparation and reaction of a very nucleophilic organo-magnesium compound. The Grignard reagent is very reactive and is easily destroyed by reaction with atmospheric water, oxygen, or carbon dioxide. The Grignard reagent must be prepared under strict anhydrous conditions (dry glassware, dry solvent). The volative solvent, diethyl ether, helps to prevent oxygen or carbon dioxide from entering the reaction vessel. Reaction of bromobenzene with magnesium in ether produces phenylmagnesium bromide. This Grignard reagent then reacts with methyl benzoate to produce the corresponding alkoxide. Reaction of the alkoxide with aqueous acid then produces the alcohol. Why does pressure develop when the separatory funnel containing aqueous sulfuric acid and the ethereal solution of organic products is shaken?
- Complete the roadmap below by providing the correct reagents for each conversion from the list. B. C. D. G H. J. H 1. PCC in pyridine 2. ethanol with catalytic sulfuric acid 3. NBS, hv 4. LDA with propanal 1. PPh3, DMF 5. 2. nbuli 3. 2-propanone 6. NaOH 7. H₂Cr₂07 8. methylpropanoate, NaOCH3 in methanol 9. CH₂CH₂MgBr then aqueous H₂SO4 10. mCPBAb) Design a synthetic scheme using the reagents given for the following two reactions. All reagents are used for each reaction scheme and in each case, a reagent can be used more than once. Take the necessary time to complete this question. i) = 2 eq. ii) 2 eq. O O H₂/Lindlar's catalyst Br₂/CH₂Cl₂ Se joon NaH H₂O+/H₂O H H₂/Lindlar's catalyst PCC/CH₂Cl₂ NaH lan -H H3O+/H₂O CH₂BrThis is a multistep syntheses. More than one reagent/reaction will be necessary to produce the product. Provide all necessary reaction conditions (HBr, HgSO4, etc.) and the products produced after each step of the synthesis.
- VI. a) b) Using acetylene and any alkyl halides as starting materials, synthesize the following compounds. More than one step may be required. Show all reagents and all intermediate compounds in your synthetic scheme. O CH3CCH₂CH₂CH₂CH₂CH3 2-heptanone (responsible for the odor of cheddar cheese) H₂C-C-OH acetic acid (raw material for the vinyl acetate polymer used in paints and adhesives)(i) H₂C (ii) (iii) H₂C (iv) (v) a. Draw the missing Reactant or Product for each of the following reactions. OH OH H*/KMnO4 H₂SO4 HCI H* / CH₂OH H* / K₂Cr₂O₂ H₂C Product A H₂C. H₂C CI CH 3 CH 33. Draw the systematic reaction mechanism for between the reaction of isoamyl alcohol and acetic acid. What are the products? What is the functional group of the major product? Does it have a scent? If so, what is the scent smells like?4. Charlie and Daniel wanted to make a drink containing 6.9% ethanol in the laboratory. However, there are three unlabelled reagent bottles that may contain these chemicals: ethanol, cyclohexane, and water. Devise a systematic flow chart to identify the ethanol and water in these three unlabelled reagent bottles.Assuming that the mixture in the reagent bottle containing ethanol are water and ethanol, what is the volume of the ethanol in the 132g of solution?5. Andrea and Yvette are going to cook the most delicious food that ever going to exist for their tired classmates that conducted the experiment in an organic chemistry laboratory. However, the stores are closed and they don’t have a table salt for the seasoning of their special dish so they need to…
- Ethers/Aldehydes/Ketones SynthesisPrepare the following compounds from any simple alkyl halide having four carbons or less,cyclohexane, and/or benzene. You may also use ethylene oxide (oxacyclopropane). SHOW ALLSTEPS AND REAGENTS with arrows.Starting from toluene as the only organic reagent you have and use any other inorganic reagent to prepare tris(4-methylphenyl)methaneAnswer all three parts plz. You are starting with three aryl bromides. They undergo a typical grignard reaction with magnesium metal and anhydrous ether (diethyl ether). Dry ice is then added to it and it is then cooled. Draw and label the names of the aryl carboxylic acids that will form for each. Part a) bromobenzene Part b) para-bromoanisole Part c) meta-bromoanisole