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- Name the following amine, including R, S stereochemistry, and draw the product of its reaction with excess iodomethane followed by heating with Ag2O (Hofmann elimination). Is the stereochemistry of the alkene product Z or E? Explain.Compound A is a derivative of the carbohydrate perosamine, which is found in the antibiotic perimycin. When A is treated with acetic anhydride in methanol, a monoacyl derivative B (C9H17NO5) is obtained in 73% yield. What is the structure of compound B?When attached halohydrin is treated with NaH, a product of molecular formula C4H8O is formed. Draw the structure of the product and indicateits stereochemistry.
- 4.4 Show how the compound thiodiazine - C21H26N2S2 - decomposes anaerobically and how these end products in turn decompose aerobically to stabilized sulfurand nitrogen compounds.When N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three products result.(a) Give the structures of these three products.(b) Propose a mechanism that accounts for the formation of these three productsThe Ka for dichloroacetic acid is 3.32 Ă— 10-2. Approximately what percentage of the acid is dissociated in a 0.10 M aqueous solution?
- Amino acids can be prepared by reaction of alkyl halides with diethyl acetamidomalonate, followed by heating the initial alkylation product with aqueous HCl. Show how you would prepare alanine, CH3CH(NH2)CO2H, one of the twenty amino acids found in proteins, and propose a mechanism for acid-catalyzed conversion of the initial alkylation product to the amino acid.Following is a retrosynthesis for the coronary vasodilator ganglefene. (a) Propose a synthesis for ganglefene from 4-hydroxybenzoic acid and 3-methyl-3-buten-2-one. (b) Is ganglefene chiral? If so, which of the possible stereoisomers are formed in this synthesis?(2R, 3S) -3-phenylbutan-2-ol tosylate undergoes E2 removal when treated with sodium ethoxide.Draw the structures of the products obtained (one majority and one minority). Use Newman's projections for this reactive in this deduction.
- What product is formed when 2,2-dimethyloxirane is treated with each set ofreagents: −OCH3 followed by H2O, or CH3OH and H2SO4?Provide a reasonable arrow-pushing mechanism for Reaction 5b, and explain the the stereochemical outcome. 5d belowWhen N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three products result. Propose a mechanism that accounts for the formation of these three products