Enantiomeric Excess Percent Optical Purity Calculations and Logic
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Chirality and Stereochemistry Practice Problems
http://Leah4sci.com/chirality presents: Chirality & Stereochemistry PracticeNeed help with Orgo? Download my free guide ’10 Secrets to Acing Organic Chemistr...
3 Factors That Stabilize Carbocations
Three main factors increase the stability of carbocations: Increasing the number of adjacent carbon atoms (methyl < primary < secondary < tertiary (most stable) Adjacent pi bonds that allow the carbocation p-orbital to be part of a conjugated pi-system system ("delocalization through resonance") Adjacent atoms with lone pairs More details below.
Hidden Hydrogens, Hidden Lone Pairs, Hidden Counterions
Time is precious. Drawing the full structures of chemical formulae out is a gigantic pain. From a distance, maybe an extra 10-20 seconds here or
Enols and Enolates Summary Sheet for Alpha Carbon Chemistry
Summary Cheat Sheets Study Guides for Organic Chemistry 1 and 2. Comprehensive, beautifully crafted powerful summary cheat sheets in high-resolution PDF.
What Makes a Good Leaving Group in Nucleophilic Substitution and Elimination Reactions
A Good Leaving Group is a must for a Nucleophilic Substitution or Elimination Reaction to occur. The good leaving group is a conjugate base of a strong acid. This trend is summarized in the following chart.
Five and Six-Membered Rings are Favorable in Intramolecular Aldol Reactions
If a compound has two carbonyl groups (dicarbonyl compound), it undergoes an intramolecular aldol reaction if a five- or six-membered ring can be formed: What happens is one of the carbonyls is deprotonated at the ɑ position, thus ... Read more
Dissertation Writing Tips: Dissertation Format
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Regiochemistry of Diels Alder reaction - Predict the major product
In these practice problems, we will determien the product of Diels-Alder reactions based on the regioselectivitve reaction of the Diene and Dionophile.
Reactions of Epoxides Practice Problems - Predicting the Product
In the previous post, we discussed the ring-opening reactions of epoxides with strong and weak nucleophiles. Using this information, try solving the following practice problems.