Recent Tutoring Session Reviews
"During this session we focused on chapter 14 material, particularly mass spectrometry and some of the most basic conceptual underpinnings. We worked on using a minimum number of memorized facts to solve problems that at first glance look very technically complex and detail oriented. I left the student with some practice problems that we will continue going through during our next session."
"We reviewed carbonyl chemistry -acetals, enamines. We covered a number of reactions. Fisher Spear esterification, acetal formation Wittig and how to identify the reaction. We looked at a aldehyde oxidation with silver oxide. I will send a mechanism for acetal formation. The student needs more practice recognizing reactions and how to rank acidity and boiling point."
"We went over a large variety of reactions. A good portion of the session was focused on retrosynthesis and how to approach these problems. We reviewed a lot of reduction, oxidation, substitution and elimination reactions. He felt it was wise to review these reductions in order to prepare for his final as well as new material. We spent time speaking about test prep and study habits. He will continue to review, and next session we will practice retrosynthesis problems."
"Went over practice test in preparation for student's test this Thursday. Among the problems, special focus was paid to stereochemistry and EAS reaction. I think the student has a good grasp and will do well on her exam."
"The student has an organic chemistry quiz tomorrow that counts as 10% of his overall grade. We continued to do some more problems together, focusing on challenging mechanism problems (ring structures) and doing some synthesis questions as well. I gave him some tips on how to approach these problems, giving him a step to step guide that he should remember when approaching these sorts of problems."
"We went over Free Radical Halogenation reactions. The student was not struggling for the most part. The student had a very positive attitude toward the material being covered. We will continue to do problems from the Organic Chemistry text book."
"We went over some questions he had from a quiz he just took. We then covered SN2, SN1, E1, and E2 reactions. Talked a lot about nucleophilicity and good/bad leaving groups, and carbocation stability. No concerns."
"We discussed about Aldehydes and Ketones. We started with Aldehydes---structure, shape, synthesis. Synthesis can be as follows--- 1 Oxidation of Primary alcohol and here we must use PCC that is Pyridinium Chloro Chromate for the controlled Oxidation of Alcohol. 2. By Ozonolysis of Alkenes. 3. By reduction of Acyl group. For reduction its better to use DIBAL-H that is di iso butyl aluminum hydride."
"We covered EAS, ortho/ para/ meta directors, and synthesis problems. We mainly worked on her problem set and went over some concepts. She got an A on her last midterm and is doing a great job. Her final is in 2 weeks so we are getting prepared for that."
"We went over topics that the student had swept under the rug from earlier in the course: stereochemistry and orbital hybridization. I saw the lights come on for these topics. She is obviously motivated; she's changing careers and this is a tough class to tackle. It's been a long time since she's been in school. I think that she appreciates my approach of dismantling large problems into small problems, and answering simpler questions to piece together the big answer. We'll keep working on that to make it habit. I left her with the assignment of repeating the work from earlier sections now that it's less guesswork, and she said that she'll keep pushing forward on the new material, which we will talk about 3 days from now."
"Introduction to enols and enolate ions, alkylation of enolate ions, why you must use LDA instead of something like sodium ethoxide in alkylation of enolate ions, alpha halogenation of ketones, the haloform reaction of methyl ketones, Hell-Volhard-Zelinsky (HVZ) reaction of carboxylic acids."
"Today we covered more reactions of aromatic substitution. We discussed ortho/para directors, meta directors, and their activating and deactivating effects. The student seemed to understand the concepts pretty well. I encouraged him to try working through the topics that we covered briefly to ensure he understands and can apply what we worked on today."