Recent Tutoring Session Reviews
"At today's session, we did the following: went over Sn1, Sn2, E1, and E2 reactions in depth, several practice problems; discussed factors that will lead you to do an Sn1 over E1 and vice versa; talked about competing reactions, stability and which substrate will undergo the reaction faster; and discussed transition states and kinetic vs thermo products, E2 on a Newman projection and on a char, as well as what kind of tricky problems can be given on an exam."
"Today we went over substitution and elimination reactions, looking at the differences between Sn1, Sn2, E1 and E2 reactions. We also covered how to promote elimination over substitution and vice versa. For E2 reactions, we discussed antiperiplanar arrangement and the use of bulky bases. Overall, the student was understanding the concepts, and we will continue to go over these reactions so that she can distinguish between the different types in preparation for her exam. Great job!"
"We covered reactions of alkenes. We then connected them to concepts we had already discussed (such as carbocation stability) to discuss regioselectivity and stereoselectivity. The student picked up the concepts easily."
"This was my first session with the student. He has an exam in one week, and we went over what would be covered and parts of a practice exam that he had. Specifically, we went over reactions and their mechanisms such as ozonolysis, ketal formation, Grignard synthesis, and a few others. He is very detail-oriented, and I tried to adjust his focus to see the bigger picture of the mechanisms. I also talked to him about utilizing his professor's office hours and the importance of asking questions when he gets something incorrect on a test. He seems dedicated to improving his grade, and I am excited to work with him."
"This session was a one-time test prep as the student will have a midterm exam 2 tomorrow. Reactions of alkenes were briefly summarized for the student. A sample exam was then reviewed, meanwhile, structure, properties, mechanism, and synthesis issues were covered. After first few chapters in orgchem, lectures are all about structure, mechanism, and synthesis in different groups of compounds. It is critical to understand arrow-pushing and regio- and stereo-selectivity or specificity."
"We covered LA and LB vs BA and BB, and their reactions. We went over mechanisms, intermediates, reaction diagrams, and resonance structures. We also covered bond dissociation energies and BDE diagrams and how to tell based on hybridization which bonds have higher BDE based on the orbital overlap."