hydrogenation

How Bleach Works: Understanding Colors From Nature

September 8, 2016

Why are tomatoes red? Why are carrots orange? Why are egg yolks yellow?   And… why is Vulcan blood green? OK, I’m not going to touch that last one, but as for the first three: great question. There are…

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Alkynes Are A Blank Canvas

Alkynes Are A Blank Canvas

June 24, 2013

Now that we’ve gone through all the major reactions of alkynes, we can take a step back and look at the big picture. There are lots of reactions of alkynes. So what? you might ask. In this post I will try to c…

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Alkene Addition Pattern #3: The “Concerted” Pathway

Alkene Addition Pattern #3: The “Concerted” Pathway

April 2, 2013

In contrast to alkene addition reactions in the Carbocation Pathway and the 3-Membered Ring Pathway, we saw in the last two posts that hydroboration of alkenes is anomalous. The regioselectivity of the reaction is …

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Addition Reactions: Stereochemistry

Addition Reactions: Stereochemistry

January 30, 2013

In the last post on alkene addition reactions, we discussed one of the two key themes to look for in addition reactions: regiochemistry (in other words – what “region” of the alkene do different ato…

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Reagent Friday: Palladium on Carbon (Pd/C)

Reagent Friday: Palladium on Carbon (Pd/C)

November 25, 2011

In a blatant plug for the Reagent Guide and the Reagents App for iPhone, each Friday  I profile a different reagent that is commonly encountered in Org 1/ Org 2.  It’s almost been 100 years since Paul Saba…

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Reagent Friday: Raney Nickel

Reagent Friday: Raney Nickel

September 30, 2011

In a blatant plug for the Reagent Guide and the Reagents App for iPhone, each Friday  I profile a different reagent that is commonly encountered in Org 1/ Org 2.  Named reagents have a slightly mysterious air to…

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Reagent Friday: Lindlar’s Catalyst

Reagent Friday: Lindlar’s Catalyst

August 19, 2011

In a blatant plug for the Reagent Guide, each Friday  I profile a different reagent that is commonly encountered in Org 1/ Org 2. Version 1.2 just got released, with a host of corrections and a new page index.  One…

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Oxidation and Reduction in Organic Chemistry

Oxidation and Reduction in Organic Chemistry

August 1, 2011

Iron smelting!  Photo credit: http://sclowcountryoutdoors.blogspot.com/2011/02/iron-smelting-at-acba.html In the beginning, the term actually made sense. When the alchemists and medieval metallurgists started doing …

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