Now Available: The Organic Reactions Flashcard App for iPhone
…wand and add features to it, what would you add? The Organic Reactions Flashcards app is currently available free from the iTunes store. If you download it and try it,…
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Palladium on Carbon (Pd/C) for Catalytic Hydrogenation of Alkenes
…higher temperatures may be used. An example of a homogeneous catalyst for hydrogenation is Wilkinson’s catalyst, RhCl(PPh3)3. This reagent is completely stereospecific., Notes Related Articles Alkene Stability m-CPBA (meta-chloroperoxybenzoic acid)…
Read moreIn Summary: Free Radicals
…of the most common classes of free-radical reactions is free-radical substitution. Here is an example of the reaction between methane and Cl2: 2. Homolytic Cleavage And “Single-Barbed” Curved Arrows Unlike…
Read moreOsO4 (Osmium Tetroxide) for Dihydroxylation of Alkenes
…alkynes! The vicinal diols can subsequently be cleaved with NaIO4 providing products that are eqivalent to those obtained through ozonolysis. Table of Contents Osmium Tetroxide, OsO4 And The Dihydroxylation of…
Read moreHydroboration Oxidation of Alkenes
…single bonds form on the same face of the alkene. (Other examples of reactions that perform syn addition are catalytic hydrogenation and dihydroxylation). Addition to 1-methylcyclopentene, for example, produces only…
Read moreAlkene Addition Pattern #1: The “Carbocation Pathway”
…proceed through the same key steps. They all share the same pattern of regioselectivity and stereoselectivity. Learn one mechanism, learn them all! https://www.masterorganicchemistry.com/wp-content/uploads/2013/02/Carbocation-pathway.mp4 There’s one last wrinkle with this family…
Read moreHalogenation of Alkenes and Halohydrin Formation
…with, which means we won’t discuss it further here. [Note 2] This reaction is the basis of a common test used in teaching laboratories, the bromine water test. Molecular bromine…
Read moreOxymercuration Demercuration of Alkenes
…any nucleophilic solvent that happens to be around, whether that be H2O, alcohols, carboxylic acids, or others. Organomercury compounds tend to be highly toxic and it is best to avoid…
Read morePlanning Organic Synthesis With “Reaction Maps”
…reaction covered in many typical first semester organic chemistry courses.: acid base, substitution, elimination, addition, free-radical reactions, even oxidative cleavage. Our primary focus has been looking at these reactions as…
Read moreHydration of Alkenes With Aqueous Acid
…if you can draw the mechanism of this reaction: Click to Flip Watch out for these kinds of examples, as they are commonly found on exams! 9. Summary Hydration of…
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