0244Pb21-10.cwk (WP)

0244Pb21-10.cwk (WP) - all Hydrogens being cis. The hard...

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Problem 21, Chemistry 0244 - 2010 Explain with the use of a detailed orbital analysis of both steps why the following two reactions lead to different stereochemical outcomes. Be sure to give structures for X and Y. Ph Ph Ph Ph X Y O O O O O O Ph Ph H H H H O O O Ph Ph H H H H 1. heat 2. 1. heat heat heat be sure to account for
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Unformatted text preview: all Hydrogens being cis. The hard part of this problem is getting the stereochemistry of the products right. BE VERY CAREFUL with your drawings - make sure you see why endo addition requires the observed stereochemistry....
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This note was uploaded on 03/02/2010 for the course CHEM orgo taught by Professor Jones during the Spring '10 term at NYU.

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