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As far back as the 16th century, South American Incas chewed the leaves of the coca bush, Erythroxylon coca, to combat fatigue. Chemical studies of Erythroxylon coca by Friedrich Wöhler in 1862 resulted in the discovery of cocaine, C17H21NO4, as the active component. Basic hydrolysis of cocaine leads to methanol, benzoic acid, and another compound called ecgonine, C9H15NO3. Oxidation of ecgonine with CrO3 yields a keto acid that readily loses CO2 on heating, giving tropinone.
(a) What is a likely structure for the keto acid?
(b) What is a likely structure for ecgonine, neglecting stereochemistry?
(c) What is a likely structure for cocaine, neglecting stereochemistry?
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Study Guide with Student Solutions Manual for McMurry's Organic Chemistry, 9th
- Name these organic compounds: structure name CH₁₂ CH3 - C CH - CH2 || CH3- - CH₂ CH₂ | - - CH3 CH3 2-methyl-2-butene ☐ 3-methyl-1-butyne - CH3 CH. - C=CHarrow_forwardHow many different molecules are drawn below?arrow_forwardWith the reference to a anion A, Label compounds B-F as an isomer or resonance strcuture of A. FOr each isomer indicate what bonds differs from A. Provide steps and undertanding on how you come up with work.arrow_forward
- Provide steps and also tips to undertand how to do on my own. Add the correct number of hydrogen atoms for each carbon atom and lone pairs to each oxygen atom.arrow_forwardA mixture of oxygen and ethyne is burnt for welding tell why mixture of ethyne and air is not usedarrow_forwardQ2: Draw all applicable resonance forms for the acetate ion CH3COO. Clearly show all lone pairs, charges, and arrow formalism.arrow_forward
- Q2: Resonance Forms a) Draw all resonance forms of the molecules. Include curved arrow notation. Label major resonance contributor. SO2 NO3 Page 3 of 4 Chem 0310 Organic Chemistry 1 HW Problem Sets CH3NSO (Thionitromethane, skeleton on the right) H N H3C Sarrow_forwardA 10.00-mL pipet was filled to the mark with distilled water at the lab temperature of 22 oC. The water, delivered to a tared weighing bottle was found to weigh 9.973 g. The density of water at 22 oC is 0.99780 g/mL. Calculate the volume of the pipet in mL. (disregard air displacement for this calculation and record your answer to the proper number of significant digits.)arrow_forwardResonance Formsa) Draw all resonance forms of the molecules. Include curved arrow notation. Label majorresonance contributor.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning