[2 ] which compound can undergo following sequence of reactions to produce desired product 2-pentanone ? NaOEt CH;CH,Br H,0* ? 2-pentanone heat (a) Ethyl-4-oxo-pentanoate (b) Ethyl-3-oxo-butanoate (c) Ethyl butanoate (d) hexanoic acid (e) butanoic acid

Which of the following structures and IUPAC names are incorrectly matched? * oe (A) Methyleyclohexanoate (В) `NH2 Br 4-Bromo-3-chlorohexanamide 2-Ethoxypentane (D) HOOC HOOC 3,5-Nonanedioic acid В A D

4. Which of the following compounds can be prepared by a malonic ester synthesis? Show the alkyl halide you would use in each case. (a) Ethyl pentanoate © Ethyl 2-methylbutanoate (b) Ethyl 3-methylbutanoate (d) Ethyl 2,2-dimethylpropanoate

22). What is the major product of the following reactions? (A) (B) Br 1) NaCN 2) CH3MgBr 3) H30*/H₂O (C) LOH (D) CN

Which of the following would successfully perform the shown reaction? (A) (B) (C) (D) OH 1) NaH 2) EtBr NEt3 Mgº ether MeO OMe [TSOH] H ? PCC

The following questions concern ethyl (2-oxocyclohexane)carboxylate.(a) Write a chemical equation showing how you could prepare ethyl (2-oxocyclohexane)-carboxylate by a Dieckmann cyclization.(b) Write a chemical equation showing how you could prepare ethyl (2-oxocyclohexane)-carboxylate by acylation of a ketone.(c) Write structural formulas for the two most stable enol forms of ethyl (2-oxocyclohexane)carboxylate.(d) Write the three most stable resonance contributors to the most stable enolate derived from ethyl (2-oxocyclohexane)carboxylate.(e) Show how you could use ethyl (2-oxocyclohexane)carboxylate to prepare 2-methylcyclohexanone.(f) Give the structure of the product formed on treatment of ethyl (2-oxocyclohexane)-carboxylate with acrolein (H2C=CHCH=O) in ethanol in the presence of sodium ethoxide

Use a Grignard reaction to prepare the following alcohols: (a) 2-Methyl-2-propanol (b) 1-Methylcyclohexanol (c) 3-Methyl-3-pentanol (d) 2-Phenyl-2-butanol (e) Benzyl alcohol (f) 4-Methyl-1-pentanol

Provide the major product for the following reaction?

Which, if any, of the following compounds can be prepared by a malonic ester synthesis? Show the alkyl halide you would use in each case. (a) Ethyl pentanoate (c) Ethyl 2-rnethylbutanoate (d) Ethyl 2,2-dimethylpropanoate (b) Ethyl 3-methylbutanoate

Which of the following reactions will synthesize phenol from benzene?      1) HNO3 + H2SO4; 2) Fe, HCl; 3) NaNO2, HCl, 0-10 oC; 4) warm H2SO4 and H2O     1) HNO3 + H2SO4; 2) Fe, HCl; 3) NaNO2, HCl, 0-10 oC; 4) CuCN; 5) dilute acid and heat     1) Acetyl chloride & AlCl3; 2) bleach     1) Ph-N2+ + KI; 2) BrMgCH=CH2 in ether, followed by H3O+; 3) warm, conc'd KMnO4     1)  Cl-CH(CH3)-CH2CH2CH3 + FeBr3; 2) hot, conc'd KMnO4