What is the Grignard reaction?

Author: Leandro Alegsa

Q: What is the Grignard reaction?


A: The Grignard reaction is an organometallic chemical reaction in which alkyl- or aryl-magnesium halides (Grignard reagents) attack electrophilic carbon atoms that are present within polar bonds.

Q: What type of bond does the Grignard reaction produce?


A: The Grignard reaction produces a carbon–carbon bond.

Q: What other types of bonds can be formed using the Grignard reaction?


A: The Grignard reaction can also form carbon–phosphorus, carbon–tin, carbon–silicon, carbon–boron and other carbon–heteroatom bonds.

Q: How does the high pKa value of the alkyl component affect the Grignard reaction?


A: The high pKa value of the alkyl component (pKa = ~45) makes the reaction irreversible.

Q: What type of addition reactions do Grignard reagents take part in?


A: Grignard reagents take part in nucleophilic organometallic addition reactions.

Q: What are some disadvantages associated with using Grignard reagents? A: Some disadvantages associated with using Grignard reagents include their reactivity with protic solvents such as water and functional groups with acidic protons, such as alcohols and amines; sensitivity to atmospheric humidity; and difficulty forming carbon-carbon bonds by reacting with alkyl halides by an SN2 mechanism.

Q: Who discovered the Grigand Reaction and Reagents?


A:The discovery of the Griand Reaction and Reagent is attributed to French chemist François Auguste Victor Griand who was awarded the 1912 Nobel Prize in Chemistry for this work.


Search within the encyclopedia
AlegsaOnline.com - 2020 / 2025 - License CC3