Solved: We now continue the use of organic chemistry

Chapter 20, Problem 20.55

(choose chapter or problem)

We now continue the use of organic chemistry roadmaps. Because of the unique nature of the new reactions presented, we recommend that you make a new roadmap that is only for Chapters 2023. To make your own roadmap for Chapters 2023, take a blank full sheet of paper and write the following functional groups in the orientations shown. Make sure to fi ll the entire sheet of paper and leave plenty of room between functional groups. Most students fi nd it helpful to use a poster-sized piece of paper fi lled out in the landscape orientation. Can occur by 1,2-addition (kinetic control) or 1,4- addition (thermodynamic control ) aryl carboxylic acid acyl benzene benzylic bromide epoxide diene halobenzene sulfobenzenes quinones aryl diazonium salts aryl fluoride amine nitrobenzenes anilines aryl iodide aryl nitrile alkene phenol alkyl benzene aryl rings vicinal amino alcohol ketone cyclohexene allylic halide carboxy phenol HX As before, refer to the Key Reactions section at the end of this chapter. Write the reagents required to bring about each reaction next to the arrows shown. Next, record any regiochemistry or stereochemistry considerations relevant to the reaction. You should also record any key aspects of the mechanism such as formation of an important intermediate as a helpful reminder. It is helpful to keep track of all reactions that make carbon-carbon bonds, because these help you build large molecules from smaller fragments. On the above organic chemistry roadmap template, the information for the addition of HX to dienes has been added to help you get started. Appendix 11 contains a series of roadmaps for different sections of the book, but you should use those for reference only after you have completed your own.