2. How would you prepare the following substances from 2-cyclohexenone? More than one step may be needed. (a) Cyclohexene (b) 3-Phynylcyclohexanone (c) 3-Oxocyclohenanecarboxylic acid (d) Methylcyclohexane
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- Draw the line structures and provide common names for the following ketones: (a) 1-Phenylpropanone (b) 2-Methylpentan-3-one(c) 1-Cyclohexyl-3,3-dimethylbutan-2-oneNonconjugated , -unsaturated ketones, such as 3-cyclohexenone, are in an acid-catalyzed equilibrium with their conjugated , -unsaturated isomers. Propose a mechanism for this isomerization.Predict the products formed when cyclohexanone reacts with the following reagents.(a) CH3NH2, H
- How would you prepare the following substances from 2-cyclohexenone? More than onestep may be needed.(a) Cyclohexene(b) 3-Phynylcyclohexanone(c) 3-Oxocyclohenanecarboxylic acid(d) MethylcyclohexaneHow would you carry out the following reactions? More than one step may be required. (a) 3-Hexyne →→ 3-Hexanone (b) Benzene →→ m-Bromoacetophenone (c) Bromobenzene →→ Acetophenone (d) 1-Methylcyclohexene →→ 2-Methylcyclohexanone(a) Draw the structure of the hemiacetal formed from one mole of benzaldehyde and one mole of ethanol. (b) Draw the structure of the acetal formed from one mole of benzaldehyde and two moles of ethanol. (c) Draw the structure of 2-methoxy-2-butanol. What compounds could you prepare this from? (d) Draw the structure of 3-methoxyl-2-butanol. What functional groups are present? Is this an acetal, a hemiacetal, or neither? Explain. (e) Identify the functional groups in the molecules shown below. Circle any acetals or hemiacetal, and identify which they are. 0-
- (a) Draw the structure of the hemiacetal formed from one mole of benzaldehyde and one mole of ethanol. (b) Draw the structure of the acetal formed from one mole of benzaldehyde and two moles of ethanol. (c) Draw the structure of 2-methoxy-2-butanol. What compounds could you prepare this from?Propose a mechanism for the reaction of(a) 1-methylcyclohexanol with HBr to form 1-bromo-1-methylcyclohexane.(b) 2-cyclohexylethanol with HBr to form 1-bromo-2-cyclohexylethane.Name and draw the structure of the major product in the following reactions of cyclohexanone: A) Reduction with NaBH4 in ethanol, followed by H+ B) Reaction with excess ethanol in the presence of H+
- Give TWO reagents to distinguish cyclohexanone from hexanal.Show how you would synthesize each compound, starting with an ester containing nomore than eight carbon atoms. Any other necessary reagents may be used.(a) Ph3C¬OH (b) (PhCH2)2CHOH(a) Draw two different enol tautomers of 2-methylcyclohexanone. (b) Draw two constitutional isomers that are not tautomers, but contain a C=C and an OH group. 2-methylcyclohexanone