An useful reaction for making alcohols is the Grignard reaction. To make alcohols using Grignard reaction Grignard Reagent with a carbonyl compound. Making a Grignard Reagent is fairly simple. The Grignard reaction is used to synthesize carbon-carbon bonds, a key step in creating new molecules for use in academic and industrial applications.
Treating Grignard Reagent with carbon dioxide gives the magnesium salt of a carboxylic acid, which on protonation with aqueous acid, gives a carboxylic acid.
In 1900, in the presence of bromoalkene, Victor Grignard found that magnesium metal had dissolved in ether. The resulting compound, then called the Grignard reagent, has reacted to the formation of new products with different types of molecules (aldehydes or ketones), defined as coming from the fusion of the two initial species.
This reaction, later called the Grignard reaction, was published in the “Comptes Rendus Hebdomadaires de l’Académie des Sciences” as a communication, and was immediately a hit. Grignard was awarded the Ph.D. title from the University of Lyon in 1901, and the Nobel Prize in Chemistry 11 years later , at the age of 41.
Reaction of Aldehydes and Ketone
This is commonly referred to as a Grignard reagent as an organomagnesium halide such as phenylmagnesium bromide (PhMgBr). Other examples of familiar organometallic compounds include organolithium reactives (RLi) and diorgano cuprates of lithium (R2CuLi, Gilman reactives).
Organometallic compounds are widely used both as stoichiometric reagents and as catalysts to permit basic or complex organic transformations Impossible to achieve with conventional organic reagents.
List of Reactions
Unless the conditions are purely anhydrous, the grignard reactions fail. If only a trace of water or some other source of slightly acidic protons is present, the alkyl halide reaction with the Mg will not even begin. Therefore, all reagents must be dried carefully before beginning the reaction, as must all glassware