Organometallic Chemistry Preparation of Grignard Reagent; pp. 643-645; using 1-b

Question

Organometallic Chemistry

Preparation of Grignard Reagent; pp. 643-645; using 1-bromobutane

OChem Lab

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6. What signs should you look for in determining whether the reaction initiated?

7. Why should the aryl or alkyl halide from which the Grignard reagent is to be made not be added all at once to the reaction flask?

8. Why is anhydrous diethyl ether added to the magnesium in two portions, one at the beginning of the reaction and the second after formation of the Grignard reagent has started?

Explanation / Answer

Organometallic Chemistry Preparation of Grignard Reagent; pp. 643-645; using 1-b

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