CHEM 2OB3 Chapter Notes - Chapter 12: Pi Bond, Ozonolysis, Leaving Group
26 Jul 2015
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Refer to chapter 9 and chapter 10 reagents for one- step alkene and alkyne reactions. Reagents must be considered to ensure a anti/mark product is achieved. If the oh is the leaving group, it needs to be protonated before leaving. Allkylation of a terminal alkyne will increase the size of the carbon skeleton. Ozonolysis of an alkene achieves bond cleavage at the pi bond. *analyze the last step of a synthesis first: change in the carbon skeleton, or identity or location of a functional group, consider reactions that can achieve such a change. The e was a change in functional group: alcohol. How are triple bonds made: dihalide undergoes two successive e2 reactions with excess nanh2 and, vicinal: germinal dibromides are only made by starting from alkyne, and we"re trying to produce alkyne. Can make vicinal dihalide from an alkene.
