Grignard reaction?

Question

How can 1 degree alcohol is produced from Grignard reaction?
Please tell me process with description.

Answer 1

Reaction mechanism
The addition of the Grignard reagent to the carbonyl typically proceeds through a six-membered ring transition state.[5]


However, with hindered Grignard reagents, the reaction may proceed by single-electron transfer.

In reactions involving Grignard reagents, it is important to ensure that no water is present, which would otherwise cause the reagent to rapidly decompose. Thus, most Grignard reactions occur in solvents such as anhydrous diethyl ether or tetrahydrofuran, because the oxygen of these solvents stabilizes the magnesium reagent. The reagent may also react with oxygen present in the atmosphere, inserting an oxygen atom between the carbon base and the magnesium halide group. Thus, many of these reactions are carried out in nitrogen or argon atmospheres.




Grignard reagents will react with a variety of carbonyl derivatives
Oxidation
The oxidation of a Grignard reagent with oxygen takes place through a radical intermediate to a magnesium hydroperoxide. Hydrolysis of this complex yields hydroperoxides and reduction with an additional equivalent of Grignard reagent gives an alcohol.


The synthetic utility of Grignard oxidations can be increased by a reaction of Grignards with oxygen in presence of an alkene to an ethylene extended alcohol.[9] This modification requires aryl or vinyl Grignards. Adding just the Grignard and the alkene does not result in a reaction demonstrating that the presence of oxygen is essential. Only drawback is the requirement of at least two equivalents of Grignard although this can partly be circumvented by the use of a dual Grignard system with a cheap reducing Grignard such as n-butylmagnesium bromide.

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Answer 2

its an organic and organic chemistry reaction gringnards are maximum ideal for making alcohols/ethers the product is C6H5(CH2O) then a source for protons is further like a susceptible acid and the suitable product is C6H5(CH2OH)