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- 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?Nonconjugated , -unsaturated ketones, such as 3-cyclohexenone, are in an acid-catalyzed equilibrium with their conjugated , -unsaturated isomers. Propose a mechanism for this isomerization.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.
- 6-40 Give the substitution products expected from solvolysis of each compound by heating in ethanol. (a) (b) (c) Br (d) Br CI CH3 BrMechanism: A reaction mechanism for the following reaction is shown below. H+ CEN CEN: N-H || -C-OH H₂O, H* Step 1 wand woled mot ozsm E Step 3 N-H C-OH C=N-H Step2 C=N-H H-O-H H₂O motno vgiene fesrigid onlt to smotnos -C=N-H a) The overall reaction is an example of b) Step 1 is c) Step 3 is d) Draw in the curved arrows for each step. e) Identify the nucleophiles and electrophiles where appropriate. f) Fill in the reaction energy diagram. H₂O: rate determining step to noipojovo hamwell sit 5(emise erit voittons 10) vanas mi sdgin al rainW di of E^ reaction progress →Provide the product and mechanism for the reaction: ОН Cro, H,SO, H,0
- Identify the suitable reagents for the given reaction and arrange them accordingly. 1 OH OEt 2 OEt OEt O 1) EtOH, H₂SO4; 2) EtOH, H₂SO4 O 1) EtONa followed by H₂O; 2) TsCl/py followed by EtONa O 1) EtONa followed by H₂O; 2) NaH followed by EtBr O 1) EtOH, H₂SO4; 2) NaH followed by EtBr O 1) EtOH, H₂SO4; 2) TsCy followed by EtONa8-8 Identify the major product(s) of the following reactions. Include stereochemistry. (a) (b) (c) Br NaOEt NaOEt NaOEtreactions. Provide the curved Predict the products of the following arrows to explain how the product is forned through the indicated mechanism. (a) S,2 reaction Br NaSH + (b) S,1 reaction NH3 Br (С) Е2 гeaction Br NaOH
- Which of the following compounds is generated by the reaction below? он (1) B2H6, diglyme но. (2) H2O2, NaOH/H2O OH (A) (B) (C) (D) Compound C O Compounds A and C Compounds A and D Compound BWhat is the product of the following sequence of reactions? D | NaOH NaNH2 H3O+ || ||| explain each steps..explanation needed. don't give Handwritten answer IV NH₂What is the expected major product of this reaction? OH H₂N I H₂N H₂N 85% H3PO4, A H₂N ||| ? H₂N IV