Chapter 10.2, Problem 9ATS

7. The reaction of methoxide anion with bromoethane to yield the ether ethyl methyl ether and the bromide anon (Br-) is an excellent example of a general reaction type called Sy2 (substitution nucleophilic bimolecular): CH,0+ CH,СH-Br a CH3-0-CH,СH; + Br- a. Change in enthalpy is -103 kJ/mol; the change in entropy is + 0.025 kJ/mol-K. Calculate DG at 300K. b. Is the reaction endergonic or exergonic? c. Is the reaction endothermic or exothermic? d. Use curved arrows to show the complete mechanism. Reaction of 2-methyl-1-butene with H-Cl could yield TWO alkyl chloride products. Draw and name 8. them.

6.) Predict the product of the following chemical reactions and state where the product (waste) should the waste should be disposed: Example: он 1. Nallif, ethanol 2. 10 CH,CH,CH,CH CH,CH,CH,CH H Butanal 1-Butanol Waste: G704 (Non-halogenated organic solvents) 1. Nalil, ethanal a.) Cyclohexanecarbaldehyde 2 110 b.) Sodium Flouride + 3-iodo-3-methylpentane (hìnt: substitution or elimination?) H,O c.) Benzoic acid + Phenol PCC d.) 3-pentanol H.CrO> e.) Cyclohexylmethanol

New hydrocarbon compounds K, L, M and N have been formed from an organic reactions in Dr. Meredith laboratory. She found that compound K and L with molecular formula (C;H14) are unsaturated hydrocarbons with positional isomerism. Meanwhile, the reaction of hydrocarbon from compound M produces carbon dioxide and water when burns in plentiful oxygen. Another observation showed compound N produces three products X, Y and Z when react with chlorine gas in the presence of UV light. Identify the name of unsaturated hydrocarbon compound K and L and draw their possible condensed and skeletal structures. Suggest the IUPAC nomenclature name for compound M and write the complete chemical reaction of compound M when burns in plentiful oxygen. Show the complete mechanism reaction that occur for the formation of products X, Y and Z from compound N.

Write the Common Features of Pericyclic Reactions.

8. a) b) Provide structure(s) for the starting material(s), reagent(s) or the major organic product(s) of each of the following reactions. OEt COOH CH3 CH; 0 OH 1. LiAlH4, ether 2. HO OH ند (CH3COO NaOH, H₂O 5 CH 3 Cl

Derive as many compound refrigerant from ethane replacing hydrogen atoms by halogen elements (chlorine, flourine, and bromine) Ethane: C2H6

Compound X (structure shown below) has a molecular formula C5H1o and reacts with H2/Pt to give compound Y, C5H12. What is the name of the reaction involved to produce Compound Y? H2C H3C CH3 Hydration Hydrogenation Halogenation Addition of halohydrin

2-chloropropane is a major product of the reaction of chlorine with propane under ultraviolet light. Write the mechanism for this reaction including the initiation step and the two propagation steps.

) The reaction of hydroxide ion with chloromethane to yield methanol and chloride ion is an example of a general reaction type called a nucleophilic substitution reaction: HO¯ + CH;CI = CH;OH + CI¯ The value of AHº for the reaction is -75 kJ/mol, and the value of ASº is +54 J/ (K- mol). What is the value of AG° (in kJ/mol) at 298 K? Is the reaction exothermic or endothermic? Is it exergonic or endergonic?