Advanced Organic Chemistry Practice Problems !!hot!!
Ready to create a quiz? Use Canvas to test your knowledge with a custom quiz Get started
(CH₃)₃CBr + H₂O → (CH₃)₃COH + HBr advanced organic chemistry practice problems
Problem 3.2
Design a synthesis of the following spirocyclic compound starting from cyclohexanone and any acyclic reagents (≤ 5 carbons). Ready to create a quiz
- Step 1: React Benzene with Propanoyl Chloride ($CH_3CH_2COCl$) and $AlCl_3$. This yields Propiophenone (1-phenylpropan-1-one).
- Step 2: Reduce the ketone. You can use $NaBH_4$ or $LiAlH_4$.
Minute 12-15: Validation
Does your mechanism violate Bredt's rule? Does it require a 4-membered ring transition state? Does it explain the stereochemistry given in the product? If yes, write it in pen. If no, revert to the "electron bookkeeping" step. Minute 12-15: Validation Does your mechanism violate Bredt's
Test your knowledge with these representative advanced problems. (Solutions are discussed conceptually below). Problem 1: Predicting the Diastereomer
3. University Course Websites (Archives)
Many top universities (MIT, Harvard, Caltech) post their graduate-level Organic Chemistry Prelim Exams with answer keys. Search for:
- Form a study group (2-4 people). Explain your dead end aloud. Often, the act of verbalizing reveals the oversight.
- Use the "Mechanism Only" rule: One person draws a step, passes it to the next. They must add two arrows, and so on.
- Consult SciFinder or Reaxys: Not to cheat, but to see if the reaction has actually been done. Real-world data often contradicts textbook assumptions.
Ready to create a quiz? Use Canvas to test your knowledge with a custom quiz Get started
(CH₃)₃CBr + H₂O → (CH₃)₃COH + HBr
Problem 3.2
Design a synthesis of the following spirocyclic compound starting from cyclohexanone and any acyclic reagents (≤ 5 carbons).
- Step 1: React Benzene with Propanoyl Chloride ($CH_3CH_2COCl$) and $AlCl_3$. This yields Propiophenone (1-phenylpropan-1-one).
- Step 2: Reduce the ketone. You can use $NaBH_4$ or $LiAlH_4$.
Minute 12-15: Validation
Does your mechanism violate Bredt's rule? Does it require a 4-membered ring transition state? Does it explain the stereochemistry given in the product? If yes, write it in pen. If no, revert to the "electron bookkeeping" step.
Test your knowledge with these representative advanced problems. (Solutions are discussed conceptually below). Problem 1: Predicting the Diastereomer
3. University Course Websites (Archives)
Many top universities (MIT, Harvard, Caltech) post their graduate-level Organic Chemistry Prelim Exams with answer keys. Search for:
- Form a study group (2-4 people). Explain your dead end aloud. Often, the act of verbalizing reveals the oversight.
- Use the "Mechanism Only" rule: One person draws a step, passes it to the next. They must add two arrows, and so on.
- Consult SciFinder or Reaxys: Not to cheat, but to see if the reaction has actually been done. Real-world data often contradicts textbook assumptions.