struct2 - STEREOCHEMICAL REPRESENTATION Stereochemistry is...

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STEREOCHEMICAL REPRESENTATION Stereochemistry is an important aspect of Organic Chemistry and you must be able to draw structures which clearly indicate the stereochemical orientation of the various groups on a molecule. For any given compound there will be a right way and many wrong ways to indicate stereochemistry. This handout gives examples of the correct way to show stereochemistry for alkenes and for cyclic and acyclic alkanes. Incorrect examples are also given to illustrate what is not acceptable. ALKENES: Alkenes contain a carbon-carbon double bond. The carbons are sp 2 hybridized, therefore the geometry at those carbons is trigonal planar: all three substitutents attached to a carbon in a double bond lie in the same plane and are approximately 120˚ apart from each other. Substituents are either cis or Z (same side) or trans or E (opposite side) to each other. You cannot draw an alkene in a linear form and say the groups are cis or trans---it must be drawn correctly. Correct
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This note was uploaded on 03/11/2012 for the course CHEM 220A taught by Professor Sulikowski during the Fall '08 term at Vanderbilt.

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struct2 - STEREOCHEMICAL REPRESENTATION Stereochemistry is...

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