Lesson 1
Benzaldehyde and the Focus on Radicals 1
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Prof. McBride, J. Michael, CHEM 125a, Freshman Organic Chemistry I, Fall 2008, YALE Open Courses: Yale University, Chemistry (Accessed 13/09/2014), http://oyc.yale.edu/chemistry/chem-125a/lecture-22 License: Creative Commons BY-NC-SA Work by Wöhler and Liebig on benzaldehyde inspired a general theory of organic chemistry focusing on so-called radicals, collections of atoms which appeared to behave as elements and persist unchanged through organic reactions. Liebig's French rival, Dumas, converted to the competing theory of types which could accommodate substitution reactions. The HOMO-LUMO mechanism of addition to alkenes and the SOMO mechanism of free-radical chain reactions are introduced.

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