Lab 10 - M. Farrell Matt Farrell November 28, 2006 Lab 10:...

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M. Farrell Matt Farrell November 28, 2006 Lab 10: Grignard Reagent Preparation and Reaction Purpose: The purpose of this experiment is to correctly execute the Grignard synthesis of a given dye. This particular Grignard used magnesium to carry out the synthesis proficiently. Background: Grignard compounds cab be adapted to the preparation of a large variety of functional groups, so the reaction of organomagnesium derivatives is one of the major uses of alkyl halides in organic synthesis. When the reaction of a halide and magnesium occurs on the metallic surface it is formally an oxidation of the metal. The reaction typically uses an ether solution, and the ether serves as a Lewis base by solvating the Grignard reagent. The formation of the organometallic reagent requires an active metal surface; Page 1 of 5
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M. Farrell When a Grignard reaction is in the presence of any “active hydrogen compound.” Apparatus for a Grignard Reaction: Synthesis: Procedure: Page 2 of 5
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M. Farrell 1. Fit 100 mL 1 neck round bottom flask with a condenser. 2.
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Lab 10 - M. Farrell Matt Farrell November 28, 2006 Lab 10:...

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