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Lecture

CHEM 2OA3 Lecture Notes - Organic Synthesis, Primary Alcohol, Formaldehyde


Department
Chemistry
Course Code
CHEM 2OA3
Professor
Jeff Landry

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Organic Synthesis
The more complex an organic compound → the more specific its use
To make these complex things, we use organic synthesis
o Start with something simple, make it undergo reaction (becomes slightly more
complex), keep reacting it, until it becomes what we want
Functional Group Transformations (transform one functional group into another)
o Oxidation-Reduction
Oxidation in o-chem: increase of number of bonds from carbon to more
electronegative element
ELECTRONEGATIVITY DOESN’T MATTER, JUST # of
BONDS TO ELECTRONEGATIVE ELEMENT!!!
Reduction is the opposite (less bonds to electronegative)
MORE ELECTRONEGATIVE THAN CARBON
Oxidize methane up one stage, product is methanol
CH4 CH3OH (one bond from C to O)
Oxidize methanol up one stage, product is formaldehyde
CH3OH → CH2O (H2>C=O) (two bonds from C to O)
Oxidize formaldehyde up one stage, product is formic acid
CH2O → C(H)(OH)(O) (two bonds C to lone O, one bond to O-H)
Oxidize formic acid up one stage, product is O=C=O
C-C Bond-Forming Reactions
Oxidation of a Primary Alcohol to an Aldehyde (and reverse)
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