Diazomethane (CH2N2)
…on carbon to give H3C-N2(+). This is an example of a diazonium compound, which you may have encountered if you’ve covered the Sandmeyer and related reactions. Like most diazonium compounds,…
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Bredt’s Rule (And Summary of Cycloalkanes)
…communication (Ref #4) provides more details on the synthesis and reactivity of the ‘Anti-Bredt’ olefin, bicyclo[3.3.1]non-1-ene. Bredt Compounds and the Bredt Rule Dr. Gert Köbrich Angew. Chem. Int. Ed. 1973,…
Read moreThionyl Chloride (SOCl2)
…into acid chlorides (“acyl chlorides”). Here is a general example, along with some specific examples. The reaction also works with the related reagents PCl3, PCl5, and oxalyl chloride, which are…
Read moreLearning Organic Chemistry Reactions: A Checklist (PDF)
…Impossible The bad news – for memorizers, anyway – is that if your instructor tests you on your ability to apply concepts to various reactions, there is a near-infinite number…
Read moreThree Exam Tips
No doubt you’ve got some important exams coming up. With that in mind, here’s three simple tactics you can use during exams. 1. Draw partial charges If you get complete…
Read moreWhy organic chemistry is hard (2)
…for. Finally, we come to this last example. We have a ketone and an ester. We can’t form a ring. You might think it would just add to the ketone…
Read moreAmide Hydrolysis
…for the hydrolysis of a cyclic amide (lactam) since reactions of cyclic molecules (and their reverse, intramolecular reactions) are common fodder for exams. This reaction comes up later in the…
Read moreThe Organic Chemistry Reagent Guide is here!
…over 80 reagents, including their structures, common names, reactions, and mechanisms -a quick-reference index, with 2 pages of condensed information on every reagent covered in the book. (Click here to…
Read moreReaction Map: Reactions of Organometallics
…sheet, here’s a page (PDF) with a “reaction map” of the most common reactions of organometallics that we discussed in the previous posts. Hope you find it useful! Here it…
Read moreReagent Friday: Chromic Acid, H2CrO4
…is a common method for the oxidation of primary alcohols to carboxylic acids. The drawback is of course the production of stoichiometric amounts of chromium waste. Researches on acetylenic compounds….
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