Grignard reagents are prepared by the reaction of magnesium metal with alkyl halides in the presence of:
Correct answer: A. Dry Ether
- A. Dry Ether
- B. Alcohol
- C. CS2
- D. CCl4
Explanation
Explanation:Grignard reagents are prepared by the reaction of magnesium metal with alkyl halides in the presence of dry ether. Alcohols are not typically used in the preparation of grignard reagents because they can react with the grignard reagent and produce unwanted byproducts.Carbon disulfide (CS2) is sometimes used as a solvent for the preparation of grignard reagents, but it is not as common as dry ether. Carbon tetrachloride is not used in the preparation of grignard reagents because it does not solvate the magnesium metal and alkyl halide well enough.
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About Nomenclature, Structure and Reactivity
Alkyl halides are named by selecting the longest carbon chain and locating the halogen substituent, while their structures are classified as primary, secondary or tertiary. Their reactivity includes nucleophilic substitution and elimination, with the behaviour of leaving groups and the distinction between SN1 and SN2 mechanisms linked to substrate structure.
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