Nucleophile - ORGANIC CHEMISTRY CHEM 12A LANEY COLLEGE Nucleophilic Substitution Reactions Competing Nucleophiles Reading ExA 21B and 21C(Gas

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ORGANIC CHEMISTRY LANEY COLLEGE CHEM 12A Version 1.1, 11/1/06 Nucleophilic Substitution Reactions: Competing Nucleophiles Reading Experiments 21, 21A, 21B and 21C (Gas Chromatography and Refractometry) in Pavia. Read all of the Required Reading for Experiment 21. See also Chapters 6 in Wade for information about substitution reactions. General Nucleophilic substitution reactions usually proceed with either first order (S N 1) or second order (S N 2) kinetics. You will examine these two types of substitution reactions: One that utilizes a primary and one that utilzes a tertiary electrophilic substrate (R-L). One goal of the experiment is to determine the role and the relative strength of the nucleophile. Another goal will be to determine whether the nucleophile strength is important in the reaction at all. R-L Nu: R-Nu L: ++ k Rate = k [R-L][Nu] for S N 2 Rate = k [R-L] for S N 1 Prelab Include: Name, Date, Title of the Experiment, Purpose, and Partners name(s). Most importantly, provide a
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This note was uploaded on 01/23/2010 for the course CHEM 12A taught by Professor Corlett during the Spring '07 term at Laney College.

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