Solvent and Double Bond Essay

699 Words May 24th, 2011 3 Pages
Lab #2 (Part A,B)

Due date: Oct 5, 2010

1 - Theory and mechanism

Epoxidation is a reaction of an alkene with a peroxycarboxylic acid (also called peracid) to produce an epoxide product, generally performed in inert solvents, such as dichloromethane. The epoxide product is a cyclic ether in which the ring contains three atoms. The alkene gains an oxygen from the peracid in a syn fashion. In this experiment, R-(-)-carvone is reacting with MCPBA, a peracid, to produce the epoxide product.
Balanced equation:

C10H14O + C7H5ClO3 --> C10H14O2 + C7H5ClO2

Since the rate of reaction depends on the electronic density of the double bond, and R-(-)-carvone has two double bonds, the reaction is regioselective. The more electron-riched
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In part A, the TLC plate obtained after 1.5 hours of the reaction showed that the reaction was not quite complete, however, another TLC was performed after 2 hours of the reaction, and the result showed the experiment was complete (no starting

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