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…Again, examining the pi molecular orbitals will give us some useful clues. Notably, in cyclobutadiene, the highest-occupied molecular orbitals are unpaired electrons of equal energy. Table of Contents Building Up…
…1. The Commonly Used “Cyclopentadiene” Can’t Be Bought From Chemical Suppliers. Why? Let’s talk about cyclopentadiene, a commonly used diene for Diels-Alder reactions that, by the way, comes up all…
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…Example #1 Determining R and S Configuration On Newman Projections: Example #2 Determining R and S On A Newman With An Eclipsed Conformation: Example #3. Conclusion: Determining R and S…
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…it does, it’s usually when you’re sitting in an exam hall. What makes the retro-Diels Alder reaction exam-question catnip for instructors is that it asks you to apply concepts you…
…really ambitious, let’s do: methyl (1R,2R,3S,5S)-3- (benzoyloxy)-8-methyl-8-azabicyclo[3.2.1] octane-2-carboxylate and methyl (1S,2S,3R,5R)-3- (benzoyloxy)-8-methyl-8-azabicyclo[3.2.1] octane-2-carboxylate. Same IUPAC descriptor, opposite (R,S)-descriptors: enantiomers. Step 3: Double Check That They’re Not Meso What about (S,R)-2,3-dibromobutane…
…access to this page, plus over 2500 quizzes, the Reaction Encyclopedia, Org 1 / Org 2 summary sheets, and flashcards, sign up here for only 30 cents/ day! …