0243Pb74-09

0243Pb74-09 - is, of course, impossible. Please explain....

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Br 2 CCl 4 H 2 Br Br Problem 74, Chemistry 0243, 2009 There are two apparent contradictions in the reaction shown above: 1. Hasn't there been a syn addition? I thought addition of Br 2 was always trans (anti). 2. As shown, the product is optically acitve. As the starting materials are achiral, such a result
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Unformatted text preview: is, of course, impossible. Please explain. (a) (b) Which 3,4-dimethyl-3-hexene ( E or Z ) would you use as starting material for the following reaction? Pd/C ?...
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