| 21. | They are substituted by Grignard reagents to give magnesium salts and an extended alkyl compound.
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| 22. | Triethylindium can be prepared in a similar fashion but with the grignard reagent, EtMgBr.
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| 23. | In comparison to aryl chlorides and bromides, aryl fluorides form Grignard reagents only reluctantly.
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| 24. | However, with hindered Grignard reagents, the reaction may proceed by single-electron transfer.
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| 25. | Grignard reagents form similar organocopper compounds.
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| 26. | Phenylmagnesium bromide is a Grignard reagent.
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| 27. | Reactions with magnesium, in contrast, must exclude water since protonolysis destroys the Grignard reagent.
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| 28. | Magnesium aryl halides are Grignard reagents, which are useful in organic synthesis of other aryl compounds.
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| 29. | For example, sulfinate esters made from sulfinyl chlorides and menthol can be used to make Grignard reagents.
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| 30. | Alkyl chlorides react with magnesium to give Grignard reagents, transforming an electrophilic compound into a nucleophilic compound.
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