8C Relative Reactivity of Alkyl Halides

8C Relative Reactivity of Alkyl Halides - Results and...

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Results and Discussion Part A: S N 2 Reaction Tube Time (sec.) 1 no reaction 2 no reaction 3 31.01 4 no reaction Part B: S N 1 Reaction Tube Time (sec.) 1 7.18 2 13.21 3 50.01 4 no reaction Part C: Solvent Effects in S N 1 Reaction Tube Time 1 4 min. 6.16 sec. 2 1 min. 54.56 sec. 3 1 min. 42.60 sec. 4 2 min. 46.72 sec. For parts A and B, tubes 1, 2, 3, and 4 respectively represent 3º, 2º, 1º, and 1º alkyl halides. In part A, which was a S N 2 reaction, the most reactive alkyl halide should be one of the 1º alkyl halides. Tubes 3 and 4 had 1º alkyl halides, tube 3 with bromine as the leaving group, and tube 4 with chlorine as the leaving group. As expected, the reaction with bromine as a leaving group occurred because it is the better leaving group out of the two. In part B, which was a S N 1 reaction, the 3º alkyl halide had the fastest reaction rate, and the 1º alkyl halide with chloride did not even react, as expected. For part C, the dielectric constant of each solvent must be used to measure the success of the
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This note was uploaded on 06/28/2011 for the course CH 236 taught by Professor Nikles during the Fall '09 term at University of Alabama at Birmingham.

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8C Relative Reactivity of Alkyl Halides - Results and...

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