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Magnesium halides, Grignard reagents

Aryl halides form Grignard reagents when reacted with magnesium. [Pg.71]

Grignard reaction. The reaction of metallic magnesium with a suitable organic halide to form an organomagnesium halide or Grignard reagent ... [Pg.115]

Table 21 Stability of DCPH Toward Alkyl Halide and Grignard Reagent Reaction of Bromooctane with Magnesium in the Presence of DCPH... Table 21 Stability of DCPH Toward Alkyl Halide and Grignard Reagent Reaction of Bromooctane with Magnesium in the Presence of DCPH...
The answer is D. Alkyl magnesium halide or Grignard reagent can react with carbon dioxide to form carboxylic salts. The description of the reaction mentioned in the question also says that the reaction occured in acidic conditions. Under acidic conditions, the salt is converted to a carboxylic acid. So statement II is true. Furthermore, alkyl magnesium halide (Grignard reagent) acts as the nucleophile in the reaction. So statement III is tme. [Pg.442]

The final step is reaction between alkylmagnesium alkoxide and magnesium halide, regenerating Grignard reagent ... [Pg.60]

Copper, SOver, and G dd.—Pentafluorophenylcopper, " which diows considerable stability, both in the free state and in solution, may be prepared by (i) metathesis between pentafluorophenyl-lithium or -magnesium halides and cuprous halides (the Grignard reagent may be prepared in situ, a reaction between CeFjCl, Mg, and CuCl giving CeFjCu) " " (ii) reaction of pentafluorobenzene (or CeFsI) with lithium dimethylcopper or (iii) decarboxylation of cuprous pentafluorobenzoate in, for example, quinoline. ... [Pg.228]

Many organic halides do not react satisfactorily with lithium to form RLi ecMnpounds or with metallic magnesium to form Grignard reagents. The desired organolithium compound can often be prepared by a halogen-metal interconversion reaction ... [Pg.929]

Grignard reagents are prepared from organic halides by reaction with magnesium a Group II metal... [Pg.591]

Formation of aryl Grignard reagents (Section 14 4) Aryl halides react with magnesium to form the corresponding arylmagnesium halide Aryl iodides are the most reac tive aryl fluorides the least A similar reaction occurs with lithium to give aryllithium reagents (Section 14 3)... [Pg.974]

The reaction proceeds by formation of the Grignard reagent from o bromofluorobenzene Because the order of reactivity of magnesium with aryl halides is Arl > ArBr > ArCl > ArF the Gngnard reagent has the structure shown and forms benzyne by loss of the salt FMgBr... [Pg.985]

See other pages where Magnesium halides, Grignard reagents is mentioned: [Pg.438]    [Pg.352]    [Pg.259]    [Pg.259]    [Pg.57]    [Pg.268]    [Pg.227]    [Pg.576]    [Pg.531]    [Pg.141]    [Pg.531]    [Pg.10]    [Pg.397]    [Pg.101]    [Pg.303]    [Pg.352]    [Pg.259]    [Pg.377]    [Pg.352]    [Pg.310]    [Pg.4]    [Pg.284]    [Pg.905]    [Pg.8]    [Pg.148]    [Pg.377]    [Pg.302]    [Pg.497]    [Pg.207]    [Pg.747]    [Pg.202]    [Pg.488]    [Pg.364]    [Pg.65]    [Pg.295]    [Pg.157]    [Pg.196]    [Pg.280]    [Pg.281]    [Pg.105]   
See also in sourсe #XX -- [ Pg.260 ]



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