Recent Tutoring Session Reviews
"We discussed NMR, IR, and Mass spectroscopy. All of these concepts, especially NMR, were very new to the student. He had been exposed to this only a couple of days ago. At first, it was not making any sense to him. However, after numerous examples, he started getting the connection between NMR peaks and the structures of organic compounds. We started from simple NMR peak assignments. We ended with detection of completely unknown organic compounds based on their IR, Mass spec, and NMR spectrum (both proton and C-NMR). We also discussed some reactions of ethers and epoxides. It was a really long and intense session. The student, however, was not only was insistent to have a longer session, but he also was completely focused throughout the entire session (which went for more than 3 hours). This is really commendable."
"We reviewed pericyclic reactions, electrocyclic reactions, drawing HOMO and LUMO states, conrotatory vs. disrotatory and what happens to the groups attached on the outside double bonds in each case, sigmatropic rearrangements, suprafacial vs. antarafacial, Claisen sigmatropic rearrangement, comparing cycloaddition to electrocyclic reactions, and sigmatropic rearrangements,"
"We reviewed stereoisomers and worked through questions regarding enantiomers, diastereomers, and meso compounds. The student did well at identifying these isomers. We reviewed questions over nucleophilic substitution and elimination."
"We reviewed substitution reactions (Sn1 and Sn2) with problems (missing reagent, product, and mechanism). We went over ether reactions and how they revolve around formation and breaking, and how epoxides are formed via Sn or peroxy acids. Went over specifically how epoxides differ from typical ethers due to steric strain. We also went over conditions under acidic and basic conditions."
"We reviewed the first parts of organic chemistry, free radical halogenation and the mechanism thereof, and then we went over the reactions and mechanisms of additions to alkenes. The student is just beginning Sn1 and Sn2 this week, so we also went over the stability of the various carbocations as well as a quick look at the difference between Sn1 and Sn2 reactions."
"We reviewed the student's first exam and covered concepts dealing with radicals. We worked through all of the suggested problems in the textbook for the chapter on radicals. He understands the overall concepts, but he makes small mistakes in the details. This was evident on his first exam as well as during the session. He should continue to work through practice problems and double-check his work as he does it to check for errors in the details."