Which of the amines listed next is resolved into enantiomers? In each case, explain whyinterconversion of the enantiomers does or does not take place.(a) cis-2-methylcyclohexanamine

Propose a structure for an amine with molecular formula CGH7N by interpreting the given 'H and 13C NMR data below. 1H NMR O 2.35 ppm O7.10 ppm 8 8.46 ppm singlet (3) doublet (2) doublet (2) 13C NMR 2, 4 1,5 6.00- 5.00- 4.00- 3.00- 2.00- 1.00- 0.00- 200 120 100 8/ ppm 180 160 140 80 60 40 20

In an attempt to synthesize compound C through a two-step process, a chemist discovered after completing the first step that they had inadvertently produced two distinct compounds, A and B. Upon examining the infrared spectroscopy (IR) results, it was observed that both A and B exhibited peaks indicative of a ketone and an ester group. Please provide the molecular structures of A and B. OEt NaOEt ΕΙΟ A B In a chemical experiment, they noticed that both components, A and B, from a combined sample turned into a new compound, C, during the following stage. The task is to determine what compound C looks like and explain how compound A or B changes into compound C through a reaction. Compound C should be the primary molecule containing carbon created in this process, not just a by-product. A B H3O+, H₂O, A Mechanism = с

Following are structural formulas for amphetamine and methamphetamine. H NH, CH3 (a) (b) Amphetamine (racemic) Methamphetamine (racemic) The major central nervous system effects of amphetamine and amphetamine-like drugs are locomotor stimulation, euphoria and excitement, stereotyped behavior, and anorexia. Show how each drug can be synthesized by reductive amination of an ap- propriate aldehyde or ketone and amine.

The shown tertiary amine (A) has an asymmetric center (the 'N' atom) and it can exist as a pair of enantiomers. However, these enantiomers cannot be separated. Explain this observation. t-BuN CH,CH3 HC A

Matching-Write the letter next to the correct structure. (A) N,N-dimethyl-2-butanamine (B) N-ethyl-N-methylpentanamine (C) N-isopropylpropylamine (D) diisopropylamine (E) 2-methylpropanamine (F) 2-butanamine (G) 2-methyl-2-propanamine (H) 4-methyl-1-hexanamine NH₂ H₂N NH2 ཙཾ། NH2 N

Classify the following amine as Secondary aliphatic, Tertiary aliphatic, or Tertiary aromatic.

Which compound in each of the following pairs is more basic? (a) CH3CH2NH2 or CH3CH2CONH2 (b) NaOH or CH3NH2 (c) CH3NHCH3 or pyridine

2) Use compound C (shown below) to answer the following questions. H2N H CH3 compound C H" H3C Br a) Classify compound C as a primary, secondary or tertiary amine. b) Give the IUPAC name for compound C, omitting absolute configuration (R or S) designations. c) In the indicated spaces below, draw the enantiomer, a diastereomer and a Fischer projection of compound C. enantiomer of compound C diastereomer of compound C Fischer projection of compound C

Tropone is an unusually basic carbonyl (C=O) compound. When it is treated with one equivalent of the strong acid HBF4, it forms A, C7H7OBF4. Draw the strucutre of A as its most stable resonance structure.