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Updated: Nov 3, 2025

A Protocol for Safe Lithiation Reactions Using Organolithium Reagents

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Published on: November 12, 2016

A monomeric methyllithium complex: synthesis and structure.

Nathan Davison¹, Emanuele Falbo¹, Paul G Waddell¹

¹Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK. erli.lu@newcastle.ac.uk.

Chemical Communications (Cambridge, England)

|June 1, 2021

Summary

This summary is machine-generated.

Researchers synthesized the first monomeric methyllithium (MeLi) complex using a novel hexadentate amine ligand. This breakthrough allows for studying the highly reactive monomeric form of MeLi, crucial for understanding its reaction mechanisms.

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Published on: April 9, 2018

Area of Science:

Organometallic Chemistry
Synthetic Chemistry

Background:

Methyllithium (MeLi) is a fundamental organolithium compound.
MeLi typically exists as aggregates in solution and solid states.
The monomeric form of MeLi is a reactive intermediate crucial for understanding MeLi-mediated reactions but has not been previously isolated.

Purpose of the Study:

To synthesize and characterize the first monomeric methyllithium complex.
To stabilize the highly reactive monomeric MeLi species.
To provide insights into the behavior of monomeric organolithium compounds.

Main Methods:

Synthesis of a novel hexadentate neutral amine ligand.
Complexation of methyllithium with the designed ligand.
Structural characterization of the resulting monomeric MeLi complex (e.g., using X-ray crystallography).

Main Results:

Successful synthesis of the first structurally characterized monomeric methyllithium complex.
The hexadentate amine ligand effectively isolates and stabilizes the monomeric MeLi unit.
The structure reveals the coordination environment around the lithium atom in the monomer.

Conclusions:

The isolation of monomeric MeLi is now achievable through strategic ligand design.
This provides a platform for detailed investigation of monomeric MeLi reactivity.
Advances the fundamental understanding of organolithium chemistry and reactivity.