Nicotine (structure shown below) has pKa values of 3.2 and 8.1. Account for these values. In your answer, include atomic orbital sketches as appropriate. Nicotine Taking into account the above pKa values, draw the structure of the monoprotonated form of nicotine. Explain your answer.
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- Explain the differences in acidity between p-cyanobenzoic acid and m-cyanobenzoic acid. Illustrate your answer appropriately, showing the acid-base reaction that takes place with each of these and explaining in such terms as electronic (inductive or resonance) and/or steric effects.Give a clear handwritten answer...and give more explanation of both points..Give the structure of compound 1 and compound 2
- aminophylline is a good water soluble derivative of theophylline as ethylene diamine derivative in order to enhance its water solubility for formulation options and to enhance the bioavailability of theophylline . dose complexation phenomena involved in aminophylline preparation? how? show through drawing chemical structure as well as drawing the electronic configuration for complexationThe sex attractant of the female housefly (Musca domestica) is called muscalure, and its structure follows. Outline a synthesis of muscalure, using the Wittig reaction. Will your synthesis lead to the required cis isomer?Complete the following acid-base reactions and predict the direction of equilibrium (to the right or to the left) for each. Justify your prediction by citing values of pKa for the stronger and weaker acid in each equilibrium. For values of acid ionization constants, consult Table 23.2 (Acid Strengths, pKa, of the Conjugate Acids of Selected Amines) and Appendix 2 (Acid Ionization Constants for the Major Classes of Organic Acids). Where no ionization constants are given, make the best estimate from the information given in the reference tables and sections.
- A student was given from the list of the compounds below A, B and D blindly and asked to identify them all. He treated each of them with Brady's reagent (2,4-ditrophenylhydrazine) and isolated a bright yellow compound for one of them, but the other two gave false negatives. The student reasoned that the false negatives may be due to sterics and, on further thinking, it dawned on him that he might be able to rule out one of the false negatives with the haloform test. What compound did he find compatible with the haloform test? That compound did indeed give a false negative in the Brady test. Which of the other two was positive in the Brady test? A = haloform B = Brady A = haloform D = Brady B = haloform A = Brady B = haloform D = Brady D = haloform A = Brady D = haloform B = BradyAs the extent of electron delocalization into the ring increases, the geometry at nitrogen flattens. p-Nitroaniline, for example, is planar. Write a resonance contributor for p-nitroaniline that shows how the nitro group increases electron delocalization.We are currently working with diastereomeric products of acid-base reactions in my organic chemistry class and while I understand the basics of the creation of selectively soluble salt products, drawing the reactions has always been difficult. Our prelab asks us to "draw the expected diasteromeric products from the reaction of racemic phenylsuccinic acid with excess (s)-methylbenzylamine and label the chiral centers" I would really appreciate some help with this!
- . Discuss the truth of the following statement. Explain why it is true or false Every SN1 reaction produces racemic mixtures in the productsSuggest an explanation for the observed order of SN1 reactivity of the following compounds. Want solution ASApAromatic compounds also known as arenes or aromatics are chemical compounds thatcontain conjugated planar ring systems with delocalized pi electron clouds instead ofdiscrete alternating single and double bonds. One of the precursor to produce aromaticcompounds is arenediazonium salt. Criticize this statement.