How to study for organic chemistry?
Study organic chemistry by doing, not rereading. Learn the handful of reaction types and what drives them, then redraw each mechanism with its arrows from a blank page until you can do it unaided. Work problems every day, keep one flashcard deck for reagents and products, and use a model kit for 3D shapes. Spread it across the semester instead of cramming.
In more detail
Organic chemistry looks like hundreds of separate reactions, but most of them repeat a few ideas: an electron-rich atom attacks an electron-poor one, a group leaves, a charge moves. If you learn those ideas and the acid-base and resonance rules behind them, a new reaction stops being new.
The course also stacks. Acid-base and resonance in the first weeks are used in every later chapter, so a gap there keeps costing points until you fix it. That is why a little every day beats a long session the night before, and why a weak early topic should be fixed right away.
Match the tool to what you are learning. Mechanisms are a drawing skill, so you train them with pen and paper. Reagents and products are lookup facts, so flashcards fit. Shapes in 3D, such as chair conformations and R and S labels, are easier to see with a model kit than in a flat drawing. Each chapter's problem set is the closest thing to the exam, so do it before you read the solutions, then study the worked example for the ones you missed.
Match the method to the topic
| Topic | What to do |
|---|---|
| Acid-base and resonance | Short daily drills: rank acids and draw every resonance form |
| Mechanisms (SN1, SN2, E1, E2, additions) | Redraw them with arrows from a blank page, compare with the answer, repeat |
| Reagents and products | Flashcards with the reagent on one side and the product and reaction type on the other |
| Stereochemistry | Build the molecule in a model kit before you name it |
| Synthesis problems | Work backwards from the target molecule, one step at a time |
| Spectroscopy (IR, NMR) | Practice sets that match a spectrum to a structure |
Step by step
- 1
Skim the headings of the next lecture before class, so the reaction names are not new.
- 2
Right after class, redraw each mechanism from a blank page, with the arrows, without looking.
- 3
Make a reaction table with reagent, reaction type, product and stereochemistry, and turn each row into a flashcard.
- 4
Do the problem set before you read the solutions. Mark every miss and redo it two days later.
- 5
Build any stereochemistry question in a model kit before you answer it.
- 6
Once a week, write out all the mechanisms of the week on a single sheet from memory.
- 7
Before the exam, take a timed practice test and review every miss by topic.
How StudyPDF helps
Upload your lecture slides, problem sets and notes, and StudyPDF builds flashcards, quizzes and a timed practice exam from them. Structures and diagrams from your slides can appear on the cards, and each answer links to the page it came from. It tracks which topics you keep missing and drills those. You still draw the mechanisms by hand, because that is the skill the exam tests.
See also
Do it on your own course
Upload your lectures and ask Bo. Cited answers, plus flashcards, exams, and more built from your material.
More questions
Is organic chemistry mostly memorization?
Less than it looks. You do need to know the common reagents and what they do, but mechanisms and patterns let you work out most reactions. Memorize the small set of building blocks and practice the rest.
Can you cram organic chemistry?
Not well. Later chapters depend on earlier ones, and mechanisms are a skill that needs repetition. Short daily practice over several weeks works better than one long session.