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- Q4. The herbicide oxyfluorfen can be prepared by the reaction between phenol and an aryl fluoride. Propose a curved arrow mechanism for this reaction. 1 F3C. LOCH2CH3 F3C. КОН CI `NO2 CI OH LOCH2CH3 `NO2 Oxyfluorfen4. For the following question please consider the four chemicals shown below. Me H2N s, NH2 acetaldehyde Chemical 1 methanamine Chemical 2 S-methyl ethanethioate Chemical 3 ethanamine Chemical 4 Chemical 4 will readily react with two other chemicals above. a. What are those two chemicals? b. Provide a chemical structure of formed products along with a probable mechanism using the arrow formalism. c. At which of the following pH's (out of 1,7,14) do you expect each reaction to occur? Why?3. 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…
- Complete the following reaction scheme. 1. DIBALH 2. H3O+ TMSCI Pyridine 1. LIAIH(t-BuO)3 SOCI2 2. H3O+ CrO3 H3O+1. Predict the major organic product(s) for each of the following reactions. Be sure to clearly indicate the proper stereochemical relationships between groups (if appropriate), and write the word "racemic" next to any compound that is formed as a racemic mixture. a. b. C. d. H H3C CH3 aq. KOH, A H₂N CH3 OH CH3 HO Ph H CH3OH PhH, A + Ph 'N' H CH3 HS SH BF3 teYr + {,,trs,£ CH3 H3C H e. HO N H2SO4 Ph. CH3 f. CH3 p-TSOH H3C H 2 eq. CH3OH g. h. H3C Ph H3O+ Ph H HO-NH2 AcOHWhich or which of the statements given below is correct. I) Maleic anhydride is a carboxylic acid derivative and its reaction with water is a reduction reaction. II) Fumaric acid and maleic acid are stereoisomers of each other III) Since fumaric acid has a more stable structure than maleic acid, its boiling point is higher. A. Solo I B. I and III C. II and III D. I, II, III E. Solo III
- Complete the following reactions by providing any missing components. Provide all products formed and label as major/ minor when necessary. a. b. c. majc whe 1. Complete the following reactions by providing any missing components. Provide all products formed and label as major/minor when necessary. a. b. HNO3 H₂SO excess K2Cr2O7 OH H2SO4 Цон H₂SO H Tollen's Reagent ortho product H₂ Pd-C CH3OH H2SO4Q4. Alkyl halides are good at doing substitution (SN2/SN1) and elimination (E1/E2) reactions because the halide (X-) is a good LG. Alcohols on the other hand are not suitable for these reactions since hydroxide (¯OH) is a poor LG. However, an OH can be converted into a OTs (tosyl group) by reacting an alcohol with TsCl in presence of a base. An OTs is a good LG, and this allows us to indirectly (via OTs) use alcohols in substitution (SN2/SN1) and elimination (E1/E2) reactions. (4) OH TsCl NEt3 OTS Tosyl ester NaCN DMSO + HNEt3 Determine the major/minor products CH3OH heat OTS Tosyl ester TsCl = NaOCH3 CH3OH DBU Ś=0 CIWhich of the following will produce 2-methyl-2-butanol? 1) xs CH3MgBr I. 2) H20 1) CH3MgBr I. 2) H20 H,SO4 III. H20 O I. and II. O I. and III. O II. and III. O I., II. and II.
- Complete the multi-step synthesis below by filling in the missing reagents in boxes below. Write neatly, and remember that some steps may require more than one step, or a particular type of solvent, etc. 6. H3C H. /H2C H3C H. H3C H3C Li H3C CI CuLi 2 ОН H3C H3CO H3C Br MgBr H;CO H3CO H3COAssume that the water side product is continuously removed to drive the reaction toward products. CH3NH2, TSOH CChoose the most correct set of reagents for the following reactions. 1. ? a O b O C O 으으 OH 2. ? OMe a. 1. MsCl, pyridine; 2. NaOCH3, CH3OH b. 1. HCI, pyridine; 2. NaOCH3, CH3OH c. 1. PCI 3, SOCI2; 2. NaOCH3, CH3OH d. 1. TsCl, pyridine; 2. NaOCH3, CH3OH e. 1. CH3O-, pyridine; 2. H* f. 1. Pl3, pyridine; 2. -OCH3