CHEM 210 Midterm: Exam 2 Study Guide
12 Nov 2018
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Understand the difference between e and z (or cis and trans) alkenes. Understand the energetic barrier for rotation of the double bond in an alkene. Know how to use heats of formation to compare the stabilities of different alkenes. Understand the reactions, regiochemistry and mechanisms for the reactions of alkenes with the following: H2 and catalyst (pt/c); you do not need to know this mechanism. Hg(oac)2 followed by nabh4 (you do not need to know the mechanism for the step with borohydride oxo mer curation. O3; only know the mechanism for the initial step of addition of o3 to the double bond. Understand the structure and resonance structures for bromonium ions (and related ions) Understand the relative stability of carbocations and radicals. Understand rearrangement of carbocations: the migration of h and me to an adjacent carbon. Understand deltag_doubledagger, transitions states, and how rate constants depend on deltag_doubledagger, and rate limiting steps.
