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- Show how to convert ketones and aldehydes to other functional groups, anddevise multistep syntheses using ketones and aldehydes as starting materialsand intermediates.Provide the an efficient synthesis for the following transformation:B) Write the most stable enol forms of the following compound, and choose which of them is more stal With explanation. TH1003 al sein) soobel. Xudda0 Jor'larizzA suddz zuddall Jen CH3
- Rank the reactivity of the compounds below toward nucleophilic acyl substitution by writing the compounds' letters in the proper blanks in the box below. `NH CI Br CH3 CH3 A В C E rank compounds for acyl substitution reactivity most least reactive reactiveMustard gas, Cl¬CH2CH2¬S¬CH2CH2¬Cl, was used as a poisonous chemical agentin World War I. Mustard gas is much more toxic than a typical primary alkyl chloride. Itstoxicity stems from its ability to alkylate amino groups on important metabolic enzymes,rendering the enzymes inactive.(a) Propose a mechanism to explain why mustard gas is an exceptionally potent alkylatingagentFor following substituted benzenes: [1] C6H5Br; [2] C6H5CN; [3] C6H5OCOCH3: Does the substituent activate or deactivate the benzene ring inelectrophilic aromatic substitution?
- The key step in a reported laboratory synthesis of sativene, a hydrocarbon isolated from the mold Helminthosporium sativum, involves the following base treatment of a keto tosylate. What kind of reaction is occurring? How would you complete the synthesis?Melamine, used as a fire retardant and a component of the writing surface of white boards, can be prepared from s-trichlorotriazine through a series of SNAr reactions with ammonia. The first substitution takes place rapidly at room temperature. The second substitution takes place near 100 °C, and the third substitution requires even higher temperature and pressure. Provide an explanation fatr this reactivity.Provide reagents/conditions to accomplish the following syntheses. Several steps are required in some cases. H2N NH2 Но TH. NH2 HO
- When phosgene is treated with excess methanol, a product is formed whose "H NMR spectrum shows one peak-a singlet at 3.8 ppm. Provide a complete, CH,OH ? CI CI detailed mechanism for this reaction. PhosgeneElectrophilic aromatic substitution usually occurs at the 1-position of naphthalene, also called the a position. Predict themajor products of the reactions of naphthalene with the following reagents.(a) HNO3, H2SO4The major product of the following reaction has the molecular formula C10H1603. Draw its structure in the most stable tautomeric form. 1. NaOC,H; 2. Н,О" С, Н,ОН